Appeal No. 78-502. June 15, 1978. Roger A. Van Kirk, Fishman Van Kirk, East Hartford, Conn., atty. of record, for appellants. Joseph F. Nakamura, Washington, D.C., for the Commissioner of Patents, Thomas E. Lynch, Washington, D.C., of counsel. Appeal from the Patent and Trademark Office Board of Appeals. Before MARKEY, Chief Judge, and RICH, BALDWIN, LANE and MILLER, Judges. RICH, Judge. This appeal is from the decision of the Patent and Trademark Office (PTO) Board of Appeals (board) affirming the