Cox v. Katz

How later courts describe this case

• “[FJailure to produce evidence, which under the circumstances would be expected, gives rise to a presumption against the party failing to produce it.”
• patented car door hinge judged against prior art in automotive hinge field, not hinges in general
• “the level of ordinary skill in the field of designing automobile bodies, including hinges, was that of engineers of substantial training, and specialized skill”
• employer ordered to reopen distribution operation