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