Checklist · Intellectual Property

Answering a Trademark Cease-and-Desist Letter: A Practical Checklist

Type
Checklist
Jurisdiction
National
Date
2026-01-13
Topic
Intellectual Property

A methodical checklist for the business owner or counsel who has just opened a trademark cease-and-desist letter. It walks the first seventy-two hours of triage—conflicts, no off-the-cuff reply, a PACER check for an actual suit, a holding letter, an information request, insurer notice under Coverage B, and a litigation hold—then decodes the demand, investigates both sides on the free public record, runs the multi-factor confusion analysis honestly, inventories every defense from classic and nominative fair use to abandonment and the equitable defenses, and lays out the full menu of responses from rebranding through a preemptive declaratory-judgment action under MedImmune. Each stage pairs the task with the reason behind it, a trap warning, and primary authority, and a full worked hypothetical ties the pieces together. Educational, not legal advice.

Answering a Trademark Cease-and-Desist Letter: A Practical Checklist

Intellectual Property > Trademark | Published 13 January 2026 - Updated 12 June 2026 | UpLaw - uplaw.us

A cease-and-desist letter is a demand, not a judgment. Standing alone it carries no more coercive force than any other piece of certified mail—no clock the law recognizes, no finding that anyone infringed anything, no power to freeze your accounts or pull your product. It is the opening bid in a negotiation the sender would prefer you not realize is a negotiation. The two failure modes are equal and opposite: capitulating to a bluff and surrendering rights you never had to give up, or firing back a furious denial that hands the sender the roadmap—and sometimes the federal jurisdiction—it needs to sue you. This checklist is the disciplined middle path. Work it in order.

Keywords: answering a trademark cease-and-desist letter, trademark C&D response, holding letter, information request, likelihood of confusion, descriptive and nominative fair use, incontestability, declaratory judgment, MedImmune, advertising injury insurance, coexistence, litigation hold, trademark bullying.

How to use this checklist

The letter in your hand is a piece of persuasion dressed up as an ultimatum. Somewhere on page two there is probably a deadline—"you have ten days to confirm in writing"—printed in bold as if it were a statutory command. It is not. That deadline is the sender's invention, chosen to make you act before you think. Your first and hardest job is to reintroduce time into a situation engineered to remove it.

What follows is organized into seven stages, roughly chronological. Stage One is pure triage: the unglamorous housekeeping of the first seventy-two hours, most of which has nothing to do with the merits and everything to do with not stepping on a rake. Stages Two and Three are reconnaissance—decode what the sender is actually claiming, then investigate both parties using records that are free and public. Stage Four is the honest confusion analysis, the doctrinal heart of nearly every ordinary trademark dispute. Stage Five inventories your defenses. Stage Six lays out the realistic menu of responses, from quiet rebranding to a preemptive lawsuit. Stage Seven is a minefield map. A full worked hypothetical closes the checklist so you can watch the stages operate together on one set of facts.

Each stage pairs the tasks with a short Why it matters note and, where relevant, a Trap flag. The point is not to memorize doctrine but to make good decisions under time pressure with money and a brand on the line. This resource is educational; it is not legal advice, and a real dispute turns on its specific facts and the law of the specific circuit. Retain a qualified trademark lawyer before you answer anything of consequence.

Stage One — The first seventy-two hours

The temptation on day one is to solve the problem—to call the other founder, "explain the whole story," and clear up what is surely a misunderstanding. Resist it completely. The first seventy-two hours are for containment, not resolution.

  • [ ] Run a conflicts check and paper the engagement before counsel hears a word of the other side's confidences. If you are bringing in a trademark lawyer, that lawyer must clear conflicts and have you sign an engagement letter first. A firm that has, or recently had, the sender as a client may be conflicted out entirely.
  • [ ] Send no immediate, emotional, substantive reply. No explaining call. No "here's what really happened" email to the sender's founder. No text. If you feel you must acknowledge receipt, hold it to a single neutral sentence: the letter has been received and is under review. Every additional word is a potential admission.
  • [ ] Find out whether you have actually been sued. Search PACER (federal dockets) and the relevant state court dockets. A filed complaint changes everything—it starts a clock the law enforces. Under the Federal Rules, a defendant served with a summons and complaint generally has twenty-one days to respond. Fed. R. Civ. P. 12(a)(1)(A)(i). The letter's "deadline," by contrast, is enforceable by nothing but the sender's willingness to escalate.
  • [ ] Consider a holding letter—lawyer to lawyer. A short, courteous note stating that the claims are under investigation and that a substantive response will follow by a stated, reasonable date. This does two things: it signals you are taking the matter seriously (which discourages an immediate suit) and it quietly replaces the arbitrary ten-day fuse with a timeline you can actually meet.
  • [ ] Consider an information request. Ask the sender to substantiate its rights: dates and evidence of first use, the geographic scope of that use, sales and advertising figures, specimens showing how the mark is actually used. A legitimate senior user can produce this in its sleep; a bluffer stalls. Either way you buy time and shift the burden of production back where it belongs.
  • [ ] Notify your insurer. Many commercial general liability (CGL) policies include "personal and advertising injury" coverage—Coverage B—and a trademark demand can trigger the duty to defend. Notice deadlines are strict, so tender early. (Details below.)
  • [ ] Issue a litigation hold. Once litigation is reasonably anticipated—and a C&D letter is a textbook trigger—the common-law duty to preserve relevant evidence attaches. Circulate a written hold to everyone who touched the mark: design files, emails, sales data, social posts, the clearance search, the naming brainstorm. Nobody "cleans up" anything.
  • [ ] Budget the fight honestly. A well-drafted response letter is cheap. A likelihood-of-confusion survey can run into the tens of thousands of dollars. Full-blown federal litigation reaches six and often seven figures. Decide early what this brand is worth to you, because that number should drive strategy in every later stage.

Why it matters. These steps are boring, and boring is the point. They forestall the two worst first-week outcomes: blowing a real deadline you did not know was running, and saying something in the heat of the moment that you can never take back. There is a third, subtler danger—doing nothing. Silence is not neutral. A sender who later sues can offer your non-response as evidence that your infringement was willful, and willfulness is the multiplier that triggers enhanced monetary relief and fee awards under the Lanham Act. 15 U.S.C. § 1117(a); see also Romag Fasteners, Inc. v. Fossil, Inc., 590 U.S. 212 (2020) (willfulness is not a precondition to disgorging an infringer's profits under § 1125(a), but a defendant's state of mind remains central to how much a court will award).

Trap — the friendly phone call. The single most expensive thing a recipient does in week one is pick up the phone and talk. "We've been using it since 2019, we didn't even know you existed, honestly we were inspired by your whole vibe"—three sentences, three gifts to the other side: a use date they can now attack, a confession that you had no clearance search, and an admission of intent to associate. Route contact through counsel and keep it in writing.

The insurance tender, in more detail

Trademark defendants routinely leave a defense on the table because nobody thinks to read the CGL policy. Under the standard Insurance Services Office (ISO) commercial general liability form, "personal and advertising injury" coverage (Coverage B) reaches a defined list of offenses. In the widely used 2013 ISO form, those offenses include using another's advertising idea in your advertisement and infringing upon another's copyright, trade dress, or slogan in your advertisement. The duty to defend is famously broad: it is triggered whenever the underlying allegations potentially fall within a covered offense, not only when they ultimately succeed, and it does not depend on the artfulness of the complaint's pleading. Courts have found a duty to defend intellectual-property claims under this language in fact-specific circumstances—for example, treating patented website functionality used to reach the public as an "advertising idea," Amazon.com, Inc. v. Atlantic Mutual Insurance Co., 2005 WL 1711966 (W.D. Wash. July 21, 2005), and treating the use of a family name to draw the public's attention to a business as an advertising idea, Holyoke Mutual Insurance Co. v. Vibram USA, Inc.

Two cautions keep this from being a magic wand. First, garden-variety trademark infringement is often not itself an enumerated offense; coverage typically has to be routed through the "slogan" or "trade dress" or "advertising idea" language, so the fit depends on exactly what the sender alleges and exactly how your policy reads. Second, many policies contain an intellectual-property exclusion that carves back some of this coverage. The move is not to assume coverage but to tender promptly—on the day you receive the C&D—to every insurer that might be on the risk, including predecessors and acquired entities, and let the carrier accept or decline in writing. A wrongful denial is its own cause of action; a missed notice deadline forecloses everything. For the downstream damages exposure that this coverage is meant to blunt, see what an intellectual-property case is actually worth and how apportionment limits a profits award in trademark cases.

The litigation hold, in more detail

The duty to preserve is not a formality, and its breach can dwarf the underlying claim. For electronically stored information, Federal Rule of Civil Procedure 37(e) authorizes sanctions when ESI that should have been preserved is lost because a party failed to take reasonable steps, and, on a finding that the party acted with intent to deprive another of the information, permits the harshest measures—an adverse-inference instruction, or even dismissal or default. The nightmare scenario is real: a startup receives a C&D, a well-meaning designer "tidies up" the shared drive by deleting old logo iterations, and eighteen months later the deletion—not the logo—becomes the centerpiece of the plaintiff's case. Freeze everything, in writing, now.

Stage Two — Decode the demand

A response can only be as good as your understanding of what the sender owns and what it must prove. Read the letter twice: once for content, once for tone.

  • [ ] Identify the marks at issue with precision. Is the asserted right a word mark (the letters, in any font), a stylized or design mark (a particular logo), or trade dress (the overall look and feel of packaging, décor, or product configuration)? The scope of protection differs enormously across these categories, and a sender will often blur them to make its rights sound broader than they are.
  • [ ] Identify the legal claims. The letter may assert several: infringement of a registered mark under Lanham Act § 32, 15 U.S.C. § 1114(1); infringement of an unregistered mark or unfair competition under § 43(a), 15 U.S.C. § 1125(a); dilution of a famous mark under § 43(c), 15 U.S.C. § 1125(c) (available only to genuinely famous marks, not merely well-known-in-a-niche ones); cyberpiracy under § 43(d), 15 U.S.C. § 1125(d); counterfeiting (which carries elevated remedies, including statutory damages and ex parte seizure, 15 U.S.C. §§ 1116(d), 1117(b)–(c)); and any contract claim arising from a prior license, franchise, coexistence, or settlement agreement.
  • [ ] Catalog every demand, item by item. Stop using the mark. Account for and disgorge profits. Pay money. Recall and destroy inventory. Abandon pending applications. Voluntarily cancel registrations. Transfer domain names and social handles. Sign a consent judgment. Each demand has a different cost and a different negotiability; you cannot triage what you have not listed.
  • [ ] Read the tone as intelligence. A strident, over-lawyered letter with a forty-eight-hour fuse and threats of "all available remedies" often signals either genuine urgency or a bully hoping to frighten a quick surrender. A measured, specific letter with a soft deadline usually signals a sophisticated owner who expects—and can absorb—a substantive reply. Calibrate accordingly.

Why it matters. Most everyday trademark disputes collapse to a single question: is consumer confusion likely? Everything else—the dilution rhetoric, the demand for a recall, the ominous references to willfulness—is scaffolding around that question. Knowing precisely what the sender owns, what it must prove, and what it actually wants (frequently something narrower and cheaper than the letter's maximalist demands) is the foundation for every choice that follows. For the full anatomy of these claims, see trademark infringement and the enforcement toolkit, and to understand the letter from the sender's side of the table—which is the fastest way to spot its weak points—see both sides of the cease-and-desist exchange and how a trademark cease-and-desist letter is drafted to work.

Stage Three — Investigate both sides on the public record

The trademark system runs on public data, and the party who does the homework usually controls the negotiation. Nearly everything you need in the first pass is free.

  • [ ] Investigate the sender and its lawyer. How large is the company? Does it have an enforcement history—a pattern of PACER filings and Trademark Trial and Appeal Board (TTAB) proceedings visible on TTABVUE—or is this a one-off? Is the signature block a seasoned trademark specialist or a general practitioner venturing outside a comfort zone? A serial enforcer with fifty prior oppositions is telling you it will not blink; a business-litigation generalist who cited the wrong Lanham Act section may be improvising.
  • [ ] Pull the sender's registration in TSDR. The USPTO's Trademark Status and Document Retrieval system shows whether the asserted registration is live or dead, whether required maintenance filings (Section 8 affidavit of continued use, Section 9 renewal) are current, and who owns it. 15 U.S.C. §§ 1058, 1059. A registration that lapsed for a missed Section 8 filing is a paper tiger. Confirm the sender actually owns what it is asserting.
  • [ ] Check the chain of title—and whether the mark is incontestable. Assignments can be defective; a mark transferred without its associated goodwill is an invalid "assignment in gross." See how a trademark assignment is properly recorded. Separately, determine whether the registration has become incontestable under Section 15, 15 U.S.C. § 1065, which requires five years of continuous post-registration use and a filed declaration. Incontestability matters, but it is not a force field (see Stage Five).
  • [ ] Read the prosecution history. This is the step amateurs skip and professionals live for. The file wrapper may contain the sender's own prior admissions: a narrowing amendment, a disclaimer of exclusive rights in a descriptive term, or an argument to the examiner that its goods are "wholly unrelated" to precisely the category you now occupy. Yesterday's argument for registration can become today's estoppel against enforcement.
  • [ ] Hunt for the sender's prior coexistence and consent agreements. If the sender has tolerated—or affirmatively consented to—other similar marks in the past, it will struggle to explain, to you or to a judge, why yours alone is intolerable. Selective enforcement erodes both the practical threat and, over time, the legal strength of a mark.
  • [ ] Investigate your own position with the same rigor. When and where did you first use the mark in commerce? Priority is frequently the whole ballgame. Do you hold your own registration or application? Did you conduct a clearance search before adopting the mark, and did counsel bless it? Do you have evidence of actual marketplace confusion—or, better for you, years of side-by-side use with none?

Why it matters. The party with the better answer to "who used what, where, and first" usually dictates terms. Priority in trademark law is not about who registered first but who used first in commerce; see how unregistered rights arise at common law and the geographic reach of those common-law rights. Federal registration complicates the picture by conferring constructive nationwide priority as of the filing date, 15 U.S.C. § 1057(c); see constructive use and nationwide priority and what federal registration actually buys the owner. A documented clearance search is doubly valuable here: it may reveal you are the senior user, and it is powerful affirmative evidence that any infringement was not willful. See rebutting willful infringement through clearance, opinions, and USPTO approval and, if you are cleaning up a gap, clearing a new trademark.

Trap — the no-contact rule. Once you know the sender is represented by counsel, do not let anyone at your company reach around the lawyer to "work it out" directly with the sender's business people. In most jurisdictions the anti-contact rule (Model Rule 4.2, as adopted locally) bars your counsel from communicating with a represented party, and an end-run by a client that counsel orchestrates can create ethical exposure and, worse, generate more of those unguarded admissions. All contact goes lawyer to lawyer.

Stage Four — Run the confusion analysis without flinching

Now for the merits. Set aside the letter's rhetoric and ask the only question that matters in the ordinary case: would an appreciable number of ordinary, reasonably prudent consumers likely be confused about the source, sponsorship, or affiliation of the goods?

  • [ ] Work the multi-factor test your circuit actually uses. The factors are similar everywhere but the labels and emphasis differ: the Polaroid factors in the Second Circuit, Polaroid Corp. v. Polarad Electronics Corp., 287 F.2d 492 (2d Cir. 1961); the Sleekcraft factors in the Ninth, AMF Inc. v. Sleekcraft Boats, 599 F.2d 341 (9th Cir. 1979); and, for registrability disputes before the TTAB, the DuPont factors, In re E.I. du Pont de Nemours & Co., 476 F.2d 1357 (C.C.P.A. 1973). The recurring themes: strength (both conceptual and commercial) of the sender's mark; similarity of the marks in sight, sound, and meaning; relatedness of the goods or services; overlap of trade channels and customers; evidence of actual confusion; the defendant's intent; and the degree of consumer care at the point of sale.
  • [ ] Remember who carries the burden. The plaintiff must prove likelihood of confusion; the accused party does not have to prove its absence. The Supreme Court made the burden allocation explicit in the fair-use context in KP Permanent Make-Up, Inc. v. Lasting Impression I, Inc., 543 U.S. 111 (2004): a defendant asserting descriptive fair use "has no independent burden to negate the likelihood of any confusion." Some risk of confusion is compatible with a valid defense.
  • [ ] Grade your own honestly. Same product, similar names, overlapping customers, and knowledge of the other brand is a strong case for the sender—and a defiant "see you in court" reply would be reckless. Different products, a weak or descriptive senior mark, distinct channels, and years of quiet coexistence is a weak case—and you can answer with confidence.

Why it matters. The confusion analysis is not a coin flip; it is a structured prediction, and structured predictions can be reasoned about in advance. Doing it honestly—grading your own case as a skeptical judge would—is what separates a response calibrated to reality from bravado that gets punished. For the doctrine in depth, see the brand owner's guide to likelihood of confusion, and, because how a court reviews these factors on appeal shapes settlement value, see the standards of review that govern trademark appeals.

Worked hypothetical — relatedness does the work. Lantern & Lace is a two-location lingerie boutique in Savannah with a federal registration for intimate apparel. It sends a C&D to Lantern & Lace Cidery, a new craft cider maker in Vermont using the same words on bottle labels. The names are identical, so "similarity of the marks" points hard toward the sender. But cider and camisoles do not share shelves, buyers, or purchasing occasions; no ordinary consumer thinks a lingerie brand launched a cidery, or vice versa. On the relatedness of goods and overlapping channels factors—usually the heaviest in the analysis—the cidery is comfortable. The identical wording feels alarming; the market reality is that confusion is unlikely. The right response letter leads with relatedness, not with an apology.

A structural point worth internalizing: because confusion so often turns on relatedness and channels rather than on the marks in isolation, the strongest defensive facts are frequently about your market, not about wordplay. A survey can quantify confusion where the factors are close (see designing a defensible confusion survey and reading and building confusion surveys), and a poorly built survey can be excluded under Rule 702 (see Daubert and the consumer survey)—but in the response phase, before anyone has spent survey money, your job is to reason the factors through candidly.

Stage Five — Inventory your defenses

A response that merely says "please leave us alone" is a plea. A response that names the specific defenses you would raise is an argument—and arguments settle cases. Go through the toolbox and mark what applies.

  • [ ] Descriptive ("classic") fair use. Codified at 15 U.S.C. § 1115(b)(4), this protects a defendant's good-faith use of a word in its ordinary, descriptive sense—not as a mark. A bakery may truthfully call its bread "whole grain" even if someone registered WHOLE GRAIN for something. After KP Permanent, the defendant need not disprove all confusion; the plaintiff keeps the confusion burden. See Restatement (Third) of Unfair Competition § 28 (1995).
  • [ ] Nominative fair use. Using the sender's mark to refer to the sender's own product—an independent repair shop advertising that it services BMW-brand cars, a review site comparing three named laptops. The Ninth Circuit's test asks whether the product is readily identifiable without the mark, whether only so much of the mark was used as necessary, and whether the user suggested false sponsorship. New Kids on the Block v. News America Publishing, Inc., 971 F.2d 302 (9th Cir. 1992). Beware the circuit split on how the defense operates (below).
  • [ ] No likelihood of confusion. Frequently the strongest card in the deck, and the one that dovetails with Stage Four. It is a merits denial, not merely an excuse.
  • [ ] Invalidity, genericness, functionality, and abandonment. A mark that is merely descriptive and lacks secondary meaning, that has become the generic name of the goods ("escalator," "cellophane"), or that is functional as to product design is vulnerable. So is an abandoned mark: under 15 U.S.C. § 1127, nonuse for three consecutive years is prima facie evidence of abandonment, and "naked licensing"—licensing without meaningful quality control—can forfeit rights entirely, FreecycleSunnyvale v. Freecycle Network, Inc., 626 F.3d 509 (9th Cir. 2010). Crucially, even an incontestable registration remains vulnerable to genericness, functionality, abandonment, and fraud. 15 U.S.C. § 1065.
  • [ ] Equitable defenses. Laches (unreasonable, prejudicial delay in suing), acquiescence (affirmative encouragement or tolerance), and estoppel. These are especially potent where the sender sat on its rights for years while you built goodwill. See the comprehensive guide to laches, acquiescence, waiver, and estoppel.
  • [ ] First Amendment and expressive use. Genuinely expressive uses—parody, commentary, art—can invoke the Rogers balancing test, Rogers v. Grimaldi, 875 F.2d 994 (2d Cir. 1989). But this defense narrowed sharply after Jack Daniel's Properties, Inc. v. VIP Products LLC, 599 U.S. 140 (2023), which held that Rogers does not apply when the accused party uses another's mark as a source identifier for its own goods. Expressive framing no longer rescues a use that functions as a brand.

Why it matters. Naming your defenses converts anxiety into an argument. It tells a sophisticated sender that you understand the case it would actually have to win, and that the win is not free. Incontestability illustrates the value of precision: under Park 'N Fly, Inc. v. Dollar Park & Fly, Inc., 469 U.S. 189 (1985), an incontestable registration forecloses the argument that the mark is merely descriptive—so do not lead with that attack against an incontestable mark—but Park 'N Fly leaves the other invalidity grounds untouched. Knowing exactly what incontestability does and does not do is worth more than a page of bluster. For how these attacks translate into affirmative challenges, see cancelling a registration at the TTAB and cancelling a trademark in federal court.

The nominative-fair-use circuit split, because it will trip you up

Nominative fair use is not implemented uniformly, and the differences matter for how you frame a response. The Ninth Circuit treats its three-part New Kids inquiry as a substitute for the ordinary confusion analysis where the defendant used the mark to refer to the plaintiff's product. The Third Circuit adopted a modified two-step approach in which the plaintiff first shows confusion and the defendant then bears a burden on tailored nominative factors, Century 21 Real Estate Corp. v. Lendingtree, Inc., 425 F.3d 211 (3d Cir. 2005). The Second Circuit, in International Information Systems Security Certification Consortium, Inc. v. Security University, LLC, 823 F.3d 153 (2d Cir. 2016), declined to treat nominative fair use as an affirmative defense at all, folding nominative considerations into the Polaroid factors instead. Practical upshot: a defense that reads as bulletproof under Ninth Circuit framing may be analyzed very differently in New York or Philadelphia. Identify your likely forum before you plant your flag on this ground.

Worked hypothetical — nominative use done right and done wrong. TimeKeepers, an independent watch-repair shop, receives a C&D from a luxury Swiss house for advertising "expert service for ROLEX and OMEGA watches." Done right—plain text, no crown logo, a visible disclaimer that TimeKeepers is independent and not an authorized dealer—this is close to a textbook nominative use: the brands cannot be identified without naming them, only the words are used, and nothing suggests sponsorship. Done wrong—the shop reproduces the crown logo, adopts the brand's signature green, and captions its storefront "Official Rolex Service Center"—it has crossed from referring to the mark into using it as a source identifier, exactly the move that forfeits the Rogers shield after Jack Daniel's and likely creates confusion. The defense lives or dies on execution, not on the label "nominative."

Stage Six — Choose your response from the menu

There is no single correct answer to a C&D. There is only the answer that best fits the merits (Stages Four and Five), the business stakes (your Stage One budget), and the sender's likely behavior (Stages Two and Three). Here is the realistic menu.

  • [ ] Comply and rebrand. Sometimes the smart play, especially when the claim is strong and you have little accrued goodwill in the mark. If you rebrand, negotiate the terms of your surrender: a sell-off period to move existing inventory, a defined scope so you are not agreeing to more than necessary, a transition payment to offset rebranding costs, and—non-negotiable—a clean, written release of all claims. A capitulation without a release buys you nothing but a pause.
  • [ ] Deny liability and explain why. Establish on the record that any accommodation you offer is a business decision, not an admission, and attach your exhibits: crowded-field registrations showing the mark is weak, prosecution-history excerpts showing the sender's own contrary positions, proof of your priority or of long coexistence. A denial with receipts is far more persuasive than a denial in the abstract.
  • [ ] Negotiate coexistence or consent. The workhorse outcome. The parties agree to stay in defined lanes—different goods, different territories, a house mark added, a stylization changed, a color dropped—and paper it in a coexistence or consent agreement. Well drafted, it ends the dispute permanently and can even be filed at the USPTO to overcome a refusal. See acquiring, licensing, and exploiting trademark rights for the transactional mechanics.
  • [ ] License or buy peace. Where coexistence is impractical, a license (with genuine quality-control provisions, so the licensor does not commit naked licensing) lets you keep using the mark under the sender's umbrella. Rarely, purchasing the sender's rights outright is cheaper than the alternatives.
  • [ ] Hold firm and defend. When the claim is weak and your position strong, a firm, reasoned letter declining the demands is entirely appropriate. Be ready for the sender to call the bluff, and make sure your letter is one you would be comfortable seeing quoted in a complaint.
  • [ ] Go on offense. If waiting to be sued means surrendering forum choice, you can sometimes strike first with a declaratory-judgment action under the Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202, or challenge the sender's mark directly at the TTAB through a cancellation or opposition. (Jurisdiction and tactics below.)
  • [ ] Do not simply ignore it. Even a one-paragraph letter declining the demands beats silence. Ignoring the letter forfeits the chance to shape the narrative and, as noted, can later be spun as willfulness.

Why it matters. The response should be matched, not reflexive. Tone is a lever: patiently walking a generalist opposing counsel through basic doctrine—here is why relatedness defeats you, here is the prosecution history admission, here is KP Permanent on the burden—can be quietly devastating and often produces a quiet withdrawal. Two mechanical safeguards belong on every substantive response: an express reservation of rights (so nothing you say is later read as a concession) and a Federal Rule of Evidence 408 designation for any settlement discussion (so your compromise proposals are not admissible against you as admissions of liability). Fed. R. Evid. 408.

The declaratory-judgment option, with its real risks

Suing first is powerful and dangerous in equal measure. The upside is control: you pick a convenient forum and convert a lingering threat into a resolved judgment. The doctrine that opened this option is MedImmune, Inc. v. Genentech, Inc., 549 U.S. 118 (2007), which replaced the older, stingier "reasonable apprehension of imminent suit" standard with a totality-of-the-circumstances test: jurisdiction exists where the facts show "a substantial controversy, between parties having adverse legal interests, of sufficient immediacy and reality to warrant" relief. The Federal Circuit applied MedImmune to IP demand letters in SanDisk Corp. v. STMicroelectronics, Inc., 480 F.3d 1372 (Fed. Cir. 2007), and courts have extended the reasoning to trademark C&D letters, e.g., Surefoot LC v. Sure Foot Corp., 531 F.3d 1236 (10th Cir. 2008). A sufficiently pointed C&D can itself manufacture the "actual controversy" a recipient needs to sue.

But two cautions. First, the sender can sometimes moot your declaratory-judgment action by handing you a broad, irrevocable covenant not to sue—the maneuver the Supreme Court blessed in Already, LLC v. Nike, Inc., 568 U.S. 85 (2013), where Nike's covenant not to sue Yums extinguished Yums's counterclaim to cancel Nike's mark. If all you wanted was to be left alone, a covenant is a win; if you wanted the sender's registration cancelled, a covenant snatches that away. Second, filing at the TTAB rather than in court has a preclusion wrinkle: under B&B Hardware, Inc. v. Hargis Industries, Inc., 575 U.S. 138 (2015), a TTAB likelihood-of-confusion determination can have issue-preclusive effect in later federal litigation when the usages adjudicated are materially the same as those before the district court—a double-edged sword that can help or haunt you depending on how the board rules. Choose the venue with the downstream preclusion consequences in mind. For the full enforcement arc from watching through appeal, see the trademark enforcement and litigation lifecycle toolkit, and for whether a given issue lands before a judge or a jury, see the legal-equitable divide in trademark litigation.

Worked hypothetical — the counterproductive counterpunch. Nimbus, a three-person weather-app startup, gets a stern but vague letter from Nimbus Systems, a cloud-infrastructure company, asserting NIMBUS "across all software." Nimbus's lawyer drafts a scorched-earth reply threatening an immediate declaratory-judgment suit "in our home district" and demanding the sender cancel its own registration. Predictable result: the reply itself supplies the "immediacy and reality" that lets Nimbus Systems—far better funded—race to its preferred courthouse and file first, flipping forum control. A patient information request and a relatedness-focused denial would have kept Nimbus out of a lawsuit it cannot afford. Aggression is a tool, not a temperament; deploy it only when you have both the case and the war chest.

Stage Seven — Disarm the landmines

Most self-inflicted wounds in C&D responses are avoidable and predictable. Walk the perimeter before you send anything.

  • [ ] Make no careless admissions. Never write that you "knew about" the sender before adopting your mark, that you "meant to evoke" its style, that you are "probably" infringing, or that you will "obviously" have to change something. These are the sentences plaintiffs quote in complaints. Concede facts only when a specific strategic reason requires it.
  • [ ] Do not overreach into a lawsuit you did not want. A taunting reply, a gratuitous insult, or a premature declaratory-judgment threat can convert a vague, deniable letter into the concrete "actual controversy" the sender needs under MedImmune—or provoke the sender to sue first. Confidence reads better than aggression, and it is safer.
  • [ ] Read any prior contract before you write a word. A pre-existing license, franchise, distribution, or settlement agreement may quietly dictate the whole dispute: a mandatory arbitration clause, a forum-selection and choice-of-law provision, a fee-shifting term, or a no-challenge covenant that bars the very defenses you were about to raise. The contract can override the default rules entirely.
  • [ ] Preserve evidence—still. The litigation hold from Stage One is not a one-time act. Keep it live for the duration; spoliation sanctions under Rule 37(e) can be worse than the underlying infringement claim, and a single "helpful" deletion can hand the sender a case it could never have won on the merits.

Why it matters. The most damaging lines in any response are the ones that concede facts you were never obligated to concede. A response is a document that will be read by an adversary hoping to use it against you; write every sentence as though it will be Exhibit A. For the mirror-image drafting discipline—how careful senders build letters designed to extract exactly these admissions—see the trademark cease-and-desist drafting checklist.

When the sender is a bully

Not every aggressive letter is a legitimate one. "Trademark bullying" is the recognized practice of a trademark owner using overly aggressive tactics to enforce rights beyond the scope trademark law actually grants—typically a large, well-resourced entity leaning on a smaller target that may lack the means or resolve to resist, betting the target will fold despite having a valid defense. The concern is serious enough that Congress directed a formal study of abusive enforcement litigation in the Trademark Technical and Conforming Amendment Act of 2010, Pub. L. No. 111-146. Commentators point to high-profile overreach—large brands leaning on tiny parodists, competitors, and hobbyists—as cautionary examples. Two practical consequences flow from spotting a bully. First, the merits are often better than the letter's bravado suggests, because bluster tends to inflate weak claims. Second, aggressive over-enforcement carries risks for the sender: reputational blowback, a potential fee award if the case is "exceptional," and, in extreme cases, exposure to counterclaims. A recipient who recognizes bullying can afford to be calm, specific, and unafraid—while still declining to hand the bully any ammunition.

The fee-shifting point deserves emphasis because it changes the sender's incentives. Under 15 U.S.C. § 1117(a), a court may award reasonable attorney's fees to the prevailing party in "exceptional cases," and the Supreme Court's Octane Fitness standard—imported into Lanham Act practice from patent law—defines an exceptional case as one that stands out from others in the substantive strength of a party's position or the unreasonable manner in which it was litigated. Octane Fitness, LLC v. ICON Health & Fitness, Inc., 572 U.S. 545 (2014). A sender pressing a baseless claim in an unreasonable manner risks paying your fees. See attorney's fees in trademark cases under the Lanham Act.

A full worked example, start to finish

Doctrine is easiest to hold onto when you watch it operate on one set of facts. Here is a single hypothetical run through all seven stages. Everything below is invented for illustration.

The facts. Marlowe & Finch is a small-batch gin distiller in Asheville, North Carolina, operating for four years, selling primarily in North Carolina tasting rooms and a handful of regional bottle shops, with a pending federal application for MARLOWE & FINCH covering "distilled spirits." One Tuesday it receives a letter from national counsel for Finch Spirits Co., which owns an incontestable federal registration for FINCH covering "vodka" and, it says, "related spirits." The letter demands that Marlowe & Finch cease all use of "Finch," abandon its application, destroy its labels within ten days, and pay an unspecified "accounting of profits." The tone is loud; the deadline is short.

Stage One (triage). Marlowe & Finch's owner does not call Finch Spirits to explain that the name honors her grandfather, Arthur Finch. She retains trademark counsel, who clears conflicts and papers the engagement. Counsel searches PACER and the state dockets: no suit has been filed, so the ten-day "deadline" is a fiction. Counsel sends a two-line holding letter and, separately, an information request asking Finch Spirits to substantiate the geographic scope and dates of its vodka sales. The owner tenders the claim to her CGL carrier the same day—the labels and marketing arguably implicate "slogan" or "trade dress" advertising-injury coverage—and issues a written litigation hold covering label design files, the naming history, and sales records. She and counsel set a candid budget.

Stage Two (decode). The asserted claims are § 32 registered-mark infringement and, implicitly, dilution—but FINCH is a common surname mark for a regional vodka, nowhere near the fame § 43(c) requires, so the dilution rhetoric is scaffolding. The real claim is confusion. The demands are catalogued: cease, abandon, destroy, pay. The abandon-the-application demand is the tell that Finch Spirits is worried about the pending MARLOWE & FINCH registration, which is useful intelligence.

Stage Three (investigate). TSDR confirms the FINCH registration is live and incontestable, owned by Finch Spirits, with clean maintenance filings. The prosecution history is gold: to overcome an earlier refusal, Finch Spirits once argued to the examiner that "vodka and gin travel in distinct trade channels to discerning consumers." That is precisely the opposite of what its letter now needs. Marlowe & Finch's own file shows continuous use since four years ago, predating nothing relevant but establishing a bona fide regional presence and a clearance search counsel ran before adoption.

Stage Four (confusion). Working the Sleekcraft/Polaroid factors: the marks differ (a two-word composite with a distinctive first term versus a single surname); the goods are related but not identical (both spirits, different categories); channels overlap partially (both sold in bottle shops) but Marlowe & Finch skews to tasting rooms; there is no evidence of actual confusion after four years of coexistence; and Marlowe & Finch adopted in good faith after clearance. Confusion is plausible but far from a lock—exactly the posture in which the sender's own prosecution-history admission bites hardest.

Stage Five (defenses). The composite mark and the surname-derived origin support a no-confusion denial. Because FINCH is incontestable, counsel does not argue "merely descriptive" (Park 'N Fly forecloses it) but preserves genericness/abandonment theories if discovery warrants. The four years of coexistence without confusion supports a laches posture should suit ever come.

Stage Six (response). Counsel declines to rebrand and sends a measured denial with three exhibits: the crowded field of "Finch"-formative spirits marks, the prosecution-history excerpt in which Finch Spirits swore vodka and gin do not overlap, and proof of good-faith clearance. The letter proposes a coexistence agreement: Marlowe & Finch stays in gin, adds no vodka line, keeps its composite mark, and Finch Spirits withdraws its demands and consents to the pending registration. Everything is marked "For Settlement Purposes Only — FRE 408," with an express reservation of rights.

Stage Seven (landmines). The letter concedes nothing—no "we knew about you," no "we were inspired by Finch." Counsel does not threaten a declaratory-judgment suit, precisely to avoid manufacturing an actual controversy and provoking a forum race. Because there is a whiff of overreach in Finch Spirits' demand for an "accounting" on these facts, counsel notes—politely—the § 1117(a) fee exposure that attends exceptional cases. The litigation hold stays live.

Outcome. Confronted with its own file wrapper and a reasonable exit that preserves its vodka lane, Finch Spirits signs a coexistence agreement within sixty days. Marlowe & Finch keeps its name, gets its registration, and never sees the inside of a courtroom. Total cost: a fraction of the owner's Stage One litigation estimate. The dispute was won in Stage Three, at the file wrapper—which is where most of them are.

Common mistakes

  • Panicking and folding, or the opposite error, ignoring the letter until it becomes a complaint.
  • Firing off an off-the-cuff emotional reply—especially a phone call—laden with admissions about knowledge, intent, or "probably" infringing.
  • Failing to check PACER and state dockets for an already-filed suit, and so treating the sender's invented deadline as real (or missing a real one).
  • Missing the insurer-notice deadline and forfeiting a defense you already paid premiums for.
  • Skipping the prosecution history, which is often the sender's most damaging self-contradiction.
  • Arguing "merely descriptive" against an incontestable registration, which Park 'N Fly forecloses—while neglecting the invalidity grounds that survive incontestability.
  • Triggering a declaratory-judgment race with a needlessly aggressive reply, and handing a better-funded sender its choice of forum.
  • Accepting a rebrand without a written release, buying a pause instead of peace.
  • Letting the litigation hold lapse and turning a winnable case into a spoliation problem.

Primary authority — a quick reference

Statutes and rules. Lanham Act §§ 32, 43(a), 43(c), 43(d), 15 U.S.C. §§ 1114, 1125(a), (c), (d); fair-use defense, 15 U.S.C. § 1115(b)(4); remedies and fees, 15 U.S.C. § 1117(a)–(c); counterfeiting seizure, 15 U.S.C. § 1116(d); maintenance and incontestability, 15 U.S.C. §§ 1058, 1059, 1065; abandonment, 15 U.S.C. § 1127; constructive use, 15 U.S.C. § 1057(c); Declaratory Judgment Act, 28 U.S.C. §§ 2201–2202; Fed. R. Civ. P. 12(a) (answer deadline) and 37(e) (ESI spoliation); Fed. R. Evid. 408 (compromise offers).

Cases. KP Permanent Make-Up, Inc. v. Lasting Impression I, Inc., 543 U.S. 111 (2004); New Kids on the Block v. News America Publishing, Inc., 971 F.2d 302 (9th Cir. 1992); Century 21 Real Estate Corp. v. Lendingtree, Inc., 425 F.3d 211 (3d Cir. 2005); International Information Systems Security Certification Consortium, Inc. v. Security University, LLC, 823 F.3d 153 (2d Cir. 2016); Park 'N Fly, Inc. v. Dollar Park & Fly, Inc., 469 U.S. 189 (1985); MedImmune, Inc. v. Genentech, Inc., 549 U.S. 118 (2007); SanDisk Corp. v. STMicroelectronics, Inc., 480 F.3d 1372 (Fed. Cir. 2007); Surefoot LC v. Sure Foot Corp., 531 F.3d 1236 (10th Cir. 2008); Already, LLC v. Nike, Inc., 568 U.S. 85 (2013); B&B Hardware, Inc. v. Hargis Industries, Inc., 575 U.S. 138 (2015); Jack Daniel's Properties, Inc. v. VIP Products LLC, 599 U.S. 140 (2023); Romag Fasteners, Inc. v. Fossil, Inc., 590 U.S. 212 (2020); Octane Fitness, LLC v. ICON Health & Fitness, Inc., 572 U.S. 545 (2014); Polaroid Corp. v. Polarad Electronics Corp., 287 F.2d 492 (2d Cir. 1961); AMF Inc. v. Sleekcraft Boats, 599 F.2d 341 (9th Cir. 1979); In re E.I. du Pont de Nemours & Co., 476 F.2d 1357 (C.C.P.A. 1973); FreecycleSunnyvale v. Freecycle Network, Inc., 626 F.3d 509 (9th Cir. 2010).

Secondary authority. J. Thomas McCarthy, McCarthy on Trademarks and Unfair Competition (5th ed.); Restatement (Third) of Unfair Competition §§ 20–21, 28 (1995); Trademark Technical and Conforming Amendment Act of 2010, Pub. L. No. 111-146.

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This checklist is educational and not legal advice. Trademark disputes turn on specific facts and on the law of the governing circuit; consult a qualified trademark attorney before answering a cease-and-desist letter or taking any action in response to one.