(a) ESTABLISHMENT OF PUBLIC ADVISORY COMMITTEES.- (1) APPOINTMENT.-The United States Patent and Trademark Office shall have a Patent Public Advisory Committee and a Trademark Public Advisory Committee, each of which shall have nine voting members who shall be appointed by the Secretary of Commerce and serve at the pleasure of the Secretary of Commerce. In each year, 3 members shall be appointed to each Advisory Committee for 3-year terms that shall begin on December 1 of that year. Any vacancy on