303.01    In General

15 U.S.C. § 1063(a)  [Trademark Act § 13(a)] Any person who believes that he would be damaged by the registration of a mark upon the principal register, including the registration of any mark which would be likely to cause dilution by blurring or dilution by tarnishment under section 1125(c) of this title, may, upon payment of the prescribed fee, file an opposition in the Patent and Trademark Office, stating the grounds therefor, within thirty days after the publication under subsection (a) of section 1062 of this title of the mark sought to be registered.

15 U.S.C. § 1064  [Trademark Act § 14] A petition to cancel a registration of a mark, stating the grounds relied upon, may, upon payment of the prescribed fee, be filed as follows by any person who believes that he is or will be damaged, including as a result of a likelihood of dilution by blurring or dilution by tarnishment under section 1125(c) of this title, by the registration of a mark on the principal register established by this chapter, or under the Act of March 3, 1881, or the Act of February 20, 1905.

15 U.S.C. § 1092  [Trademark Act § 24] Marks for the supplemental register shall not be published for or be subject to opposition, but shall be published on registration in the Official Gazette of the Patent and Trademark Office. Whenever any person believes that such person is or will be damaged by the registration of a mark on the supplemental register--

  • (1) for which the effective filing date is after the date on which such person’s mark became famous and which would be likely to cause dilution by blurring or dilution by tarnishment under section 1125(c) of this title; or
  • (2) on grounds other than dilution by blurring or dilution by tarnishment, such person may at any time, upon payment of the prescribed fee and the filing of a petition stating the ground therefor, apply to the Director to cancel such registration.

15 U.S.C. § 1127  [Trademark Act § 45] In the construction of this chapter, unless the contrary is plainly apparent from the context--

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Person, Juristic Person. The term "person" and any other word or term used to designate the applicant or other entitled to a benefit or privilege or rendered liable under the provisions of this Act includes a juristic person as well as a natural person. The term "juristic person" includes a firm, corporation, union, association, or other organization capable of suing and being sued in a court of law.

The term "person" also includes the United States, any agency or instrumentality thereof, or any individual, firm, or corporation acting for the United States and with the authorization and consent of the United States. The United States, any agency or instrumentality thereof, and any individual, firm, or corporation acting for the United States and with the authorization and consent of the United States, shall be subject to the provisions of this chapter in the same manner and to the same extent as any non-governmental entity.

The term "person" also includes any State, any instrumentality of a State, and any officer or employee of a State or instrumentality of a State acting in his or her official capacity. Any State, and any such instrumentality, officer, or employee, shall be subject to the provisions of this Act in the same manner and to the same extent as any non-governmental entity.

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37 CFR § 2.2(b)  Entity as used in this part includes both natural and juristic persons.

37 CFR § 2.101(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 ….

37 CFR § 2.111(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. ...