No. 96-1240. January 21, 1997. Appealed from: U.S. Patent and Trademark Office Board of Patent Appeals and Interferences. Andrew J. Gray, IV, Jacobson, Price, Holman Stern, P.L.L.C., of Washington, DC, argued, for appellant. With him on the brief was Simor L. Moskowitz. Albin F. Drost, Deputy Solicitor, U.S. Patent and Trademark Office, Arlington, VA, argued, for the Commissioner. With him on the brief were Nancy J. Linck, Solicitor, and Nancy C. Slutter, Associate Solicitor. Of counsel was Kevin