[Code of Federal Regulations] [Title 37, Volume 1] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 37CFR10.31] [Page 354-355] TITLE 37--PATENTS, TRADEMARKS, AND COPYRIGHTS DEPARTMENT OF COMMERCE PART 10--REPRESENTATION OF OTHERS BEFORE THE PATENT AND TRADEMARK OFFICE--Table of Contents Sec. 10.31 Communications concerning a practitioner's services. (a) No practitioner shall with respect to any prospective business before the Office, by word, circular, letter, or advertising, with intent to defraud in any manner, deceive, mislead, or threaten any prospective applicant or other person having immediate or prospective business before the Office. (b) A practitioner may not use the name of a Member of either House of Congress or of an individual in the service of the United States in advertising the practitioner's practice before the Office. (c) Unless authorized under Sec. 10.14(b), a non-lawyer practitioner shall not hold himself or herself out as authorized to practice before the Office in trademark cases. (d) Unless a practitioner is an attorney, the practitioner shall not hold himself or herself out: [[Page 355]] (1) To be an attorney or lawyer or (2) As authorized to practice before the Office in non-patent and trademark cases.