37 CFR 2.173 : Patents, Trademarks, And Copyrights (Section 2.11 To Chapter V) — United States Patent And Trademark Office, Department Of Commerce (Parts 1 - 199) (Section 2.11 To Parts 151-199) — Unknown Title (Parts 2 - 90) (Section 2.11 To Section 90.3) — Rules Of Practice In Trademark Cases (Section 2.11 To Section 2.7) — Representation By Attorneys Or Other Authorized Persons (Part 2) (Section 2.11 To Section 2.209) — Amendment of registration.

(a) Form of amendment. The owner of a registration may apply to amend a registration or to disclaim part of the mark in the registration. The owner must submit a written request specifying the amendment or disclaimer. If the registration is involved in an inter partes proceeding before the Trademark Trial and Appeal Board, the request must be filed by appropriate motion to the Board.

(b) Requirements for request. A request for amendment or disclaimer must:

(1) Include the fee required by § 2.6;

(2) Be signed by the owner of the registration, someone with legal authority to bind the owner (e.g., a corporate officer or general partner of a partnership), or a practitioner who meets the requirements of § 11.14, and verified or supported by a declaration under § 2.20; and

(3) If the amendment involves a change in the mark: one new specimen per class showing the mark as used on or in connection with the goods or services; an affidavit or declaration under § 2.20 stating that the specimen was in use in commerce at least as early as the filing date of the amendment; and a new drawing of the amended mark. When requested by the Office, additional specimens must be provided.

(4) The Office may require the owner to furnish such specimens, information, exhibits, and affidavits or declarations as may be reasonably necessary to the proper examination of the amendment.

(c) Registration must still contain registrable matter. The registration as amended must still contain registrable matter, and the mark as amended must be registrable as a whole.

(d) Amendment may not materially alter the mark. An amendment or disclaimer must not materially alter the character of the mark.

(e) Amendment of identification of goods. No amendment in the identification of goods or services in a registration will be permitted except to restrict the identification or to change it in ways that would not require republication of the mark.

(f) Conforming amendments may be required. If the registration includes a disclaimer, description of the mark, or other miscellaneous statement, any request to amend the registration must include a request to make any necessary conforming amendments to the disclaimer, description, or other statement.

(g) Elimination of disclaimer. No amendment seeking the elimination of a disclaimer will be permitted, unless deletion of the disclaimed portion of the mark is also sought.