Appeal No. 81-593. April 1, 1982. Franklin D. Wolffe, Washington, D.C., and Thomas F. Smegal, Jr., San Francisco, Cal., for appellant. Joseph F. Nakamura, Sol., and Harris A. Pitlick, Asst. Sol., of Washington, D.C., for the Patent and Trademark Office. Appeal from the Patent and Trademark Office Board of Appeals. Before MARKEY, Chief Judge, and RICH, BALDWIN, MILLER and NIES, Judges. NIES, Judge. This appeal is from the decision of the Patent and Trademark Office (PTO) Board of Appeals (board) sustaining