532 U.S. 23 (2001) Cited 606 times 29 Legal Analyses
Holding that the dual-spring design was not protectable because it had a purpose “beyond serving the purpose of informing consumers that the sign stands are made by” the plaintiff
514 U.S. 159 (1995) Cited 580 times 52 Legal Analyses
Holding companies may not "inhibit[] legitimate competition" by trademarking desirable features to "put competitors at a significant non-reputation-related disadvantage"
Holding that a consideration in determining whether a particular product feature is functional is the existence of "advertising materials in which the originator of the design touts the design's utilitarian advantages"
Entertaining an opposition on the ground that the subject matter of applicant's registration was functional: "the [Lanham] Act is premised on the idea that only non-functional configurations may be registrable thereunder."
15 U.S.C. § 1052 Cited 1,616 times 274 Legal Analyses
Granting authority to refuse registration to a trademark that so resembles a registered mark "as to be likely, when used on or in connection with the goods of the applicant, to cause confusion, or to cause mistake, or to deceive"