Instead of an oath, affidavit, or sworn statement, the language of 28 U.S.C. 1746 , or the following declaration language, may be used: The signatory being warned that willful false statements and the like are punishable by fine or imprisonment, or both, under 18 U.S.C. 1001 , and that such willful false statements and the like may jeopardize the validity of the application or submission or any registration resulting therefrom, declares that all statements made of his/her own knowledge are true and
(a)Signature required. Each piece of correspondence that requires a signature must bear: (1) A handwritten signature personally signed in permanent ink by the person named as the signatory, or a true copy thereof; or (2) An electronic signature that meets the requirements of paragraph (c) of this section, personally entered by the person named as the signatory. The Office will accept an electronic signature that meets the requirements of paragraph (c) of this section on correspondence filed on paper