(a) A cancellation proceeding is commenced by filing in the Office a timely petition for cancellation with the required fee. (b) Any person who believes that he, she, or it is or will be damaged by a registration may file a petition, addressed to the Trademark Trial and Appeal Board, for cancellation of the registration in whole or in part. The petition for cancellation need not be verified, but must be signed by the petitioner or the petitioner's attorney, as specified in § 11.1 of this chapter
(a) An opposition proceeding is commenced by filing in the Office a timely notice of opposition with the required fee. (b) Any person who believes that he, she or it would be damaged by the registration of a mark on the Principal Register may file an opposition addressed to the Trademark Trial and Appeal Board. The opposition need not be verified, but must be signed by the opposer or the opposer's attorney, as specified in § 11.1 of this chapter, or other authorized representative, as specified in
(a) An application for registration on the Principal Register under section 1(a) or 44 of the Act may be changed to an application for registration on the Supplemental Register and vice versa by amending the application to comply with the rules relating to the appropriate register, as the case may be. (b) An application under section 1(b) of the Act may be amended to change the application to a different register only after submission of an acceptable amendment to allege use under § 2.76 or statement