No. 90-1362. May 13, 1991. Thomas W. Tolpin, Highland Park, Ill., argued for appellant. Teddy S. Gron, Associate Sol., Office of the Sol., Arlington, Va., argued for appellee. With him on the brief was Fred E. McKelvey, Sol. Appeal from the United States Patent and Trademark Office, Board of Patent Appeals and Interferences. Before RICH, NEWMAN, and RADER, Circuit Judges. PAULINE NEWMAN, Circuit Judge. Jeffrey B. Gorman and Marilyn Katz (hereinafter "Gorman") appeal the decision of the United States