The trademark trial and appeal board (TTAB) is a neutral body of administrative trademark judges within the United States Patent and Trademark Office  (USPTO). The TTAB primarily hears appeals, oppositions, and cancellations relating to trademark matters. Decisions handed down by the TTAB are appealable to a United States District Court or the United States Court of Federal Appeals. Cases brought before the TTAB are governed according to the rules and procedures outlined in the Trademark Trial and Appeal Board Manual of Procedure.   

TBMP - Trademark Trial and Appeal Board Manual of Procedure
TBMP – Trademark Trial and Appeal Board Manual of Procedure