https://trademarklawauthority.com/ttab-proceedings/
TTAB Proceedings: Opposition and Cancellation Before the Trademark Trial and Appeal Board
The Trademark Trial and Appeal Board TTAB is the administrative tribunal within the U.S. Patent and Trademark Office that adjudicates inter partes disputes...
ttab proceedingsoppositioncancellation
https://www.uspto.gov/web/offices/com/sol/og/con/files/cons199.htm
Amendments to TTAB Inter Partes Proceedings
amendmentsttabinterpartesproceedings