Appeal No. 97-3065 Page 16
Application No. 08/452,747
Plasma discloses a coating material that provides wear
resistance, excellent release and excellent web tracking
properties. Plasma teaches that their coating is used to
replace "cured fluorocarbons, silicone coatings/tapes, Teflon®
tape/sleeve, rubber coverings and chrome plating." Plasma
also discloses that their coating can be applied to laminator
rolls, oven rolls and idler rolls.
After the scope and content of the prior art are
determined, the differences between the prior art and the
claims at issue are to be ascertained. Graham v. John Deere
Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966).
Based on our analysis and review of Ales and the claims
under appeal, it is our opinion that the only difference is
that the outer working surfaces of drum 102 and roller 152 do
not have the claimed protuberances thereon.
In our opinion, it would have been obvious to one of
ordinary skill in the art at the time the invention was made
to have coated the outer working surfaces of drum 102 and
Page: Previous 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Next
Last modified: November 3, 2007