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Line 1: In [[United States trademark law]], the '''functionality doctrine''' prevents [[manufacturer]]s from protecting specific features of a product by means of [[trademark]] law. This separates trademarks from [[patent]]s — trademarks serve to protect a firm's reputation and [[goodwill]], whereas patents serve to protect processes, [[machine]]s, and material [[invention]]s. {{US-law-stub}}

Functionality doctrine: Difference between revisions