Appeal No. 84-513. June 8, 1984. Jeffrey G. Sheldon, Pasadena, Cal., argued for appellants. John F. Pitrelli, Arlington, Va., argued for appellee. With him on the brief were Joseph F. Nakamura, Sol., and John W. Dewhirst, Associate Sol., Washington, D.C. Appeal from the United States Patent and Trademark Office Board of Appeals. Before BENNETT, Circuit Judge, SKELTON, Senior Circuit Judge, and MILLER, Circuit Judge. JACK R. MILLER, Circuit Judge. This appeal is from that part of the decision of the