(a) An application subject to an opposition may not be amended in substance nor may a registration subject to a cancellation be amended or disclaimed in part, except with the consent of the other party or parties and the approval of the Trademark Trial and Appeal Board, or upon motion granted by the Board. (b) If, in an inter partes proceeding, the Trademark Trial and Appeal Board finds that a party whose application or registration is the subject of the proceeding is not entitled to registration
(a) One copy of the declaration or affidavit prepared in accordance with § 2.123 , together with copies of documentary exhibits and duplicates or photographs of physical exhibits, shall be served on each adverse party at the time the declaration or affidavit is submitted to the Trademark Trial and Appeal Board during the assigned testimony period. (b) One copy of the transcript of each testimony deposition taken in accordance with § 2.123 or § 2.124 , together with copies of documentary exhibits