Appeal No. 81-542. February 18, 1982. Rehearing Denied April 22, 1982. Roland T. Bryan, Stamford, Conn., for appellant. Joseph F. Nakamura, Sol., John W. Dewhirst, Associate Sol., Washington, D.C., for Patent and Trademark Office. Appeal from the United States Patent and Trademark Office Board of Appeals. Before MARKEY, Chief Judge, and RICH, BALDWIN, MILLER and NIES, Judges. RICH, Judge. This appeal is from the decision of the United States Patent and Trademark Office (PTO) Board of Appeals (board)