Definition[edit | edit source]

U.S. trademark law[edit | edit source]

Disparagement is a statutory cause of action that permits a party to petition the Trademark Trial and Appeal Board (TTAB) of the United States Patent and Trademark Office (PTO) to cancel a trademark registration that "may disparage or falsely suggest a connection with persons, living or dead, institutions, beliefs, or national symbols, or bring them into contempt or disrepute."[1] Unlike claims regarding the validity of the mark, a disparagement claim can be brought "at any time," subject to equitable defenses such as laches.

References[edit | edit source]

  1. 15 U.S.C. §1052.


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