Appeal No. 96-2640 Application No. 08/068,273 pages 7 and 8 of the answer. Appellant contends that claim 1 is unobvious over Copeland, because Copeland does not disclose (I) "a lower hollow cylinder defining an interior bore of constant diameter which receives said upper core with a mating fit" (claim 13Page: Previous 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NextLast modified: November 3, 2007