[Code of Federal Regulations] [Title 37, Volume 1] [Revised as of July 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 37CFR2.46] [Page 249] TITLE 37--PATENTS, TRADEMARKS, AND COPYRIGHTS CHAPTER I--UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE PART 2_RULES OF PRACTICE IN TRADEMARK CASES--Table of Contents Sec. 2.46 Principal Register. All applications will be treated as seeking registration on the Principal Register unless otherwise stated in the application. Service marks, collective marks, and certification marks, registrable in accordance with the applicable provisions of section 2 of the Act, are registered on the Principal Register.