The US Court of Appeals for the Seventh Circuit affirmed a district court finding that a trade dress for a conveyor belt fastener was invalid as functional because its utilitarian advantages were disclosed in patents, advertising materials and internal corporate documents. Flexible Steel Lacing Co. v. Conveyor Accessories, Inc., Case No. 19-2035 (7th Cir. Apr. 7, 2020) (Ripple, J.).

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