Appeal No. 2004-0071 Application No. 09/888,445 substrate, cut and non-cut portions are formed in the substrate along outlines defining the pieces. The invention is more particularly described in claim 1 as follows: 1. A porous sheet substrate for cutting off porous sheet pieces, which comprises a polytetrafluoroethylene porous material or a composite sheet comprising the polytetrafluoroethylene porous material and a gas-permeable reinforcing member laminated on at least one side of the porous material, wherein cut portions and non-cut portions are formed along outlines of porous sheet pieces to be cut in a manner which permits the porous sheet pieces to be cut off against the non-cut portions by pushing the porous sheet pieces to be cut. Claim 1 stands rejected for obviousness under 35 U.S.C. § 103 in view of admitted prior art (as described on page 1 of appellant’s specification) taken with the following prior art reference:1 Wilk 5,322,521 Jun. 21, 1994 We have carefully evaluated the entire record on appeal in light of the opposing positions taken by the appellant and the examiner. Having done so, we conclude that the admitted prior art taken with Wilk supports a prima facie case of obviousness. Accordingly, we shall affirm the examiner’s rejection. 1A previously applied rejection under 35 U.S.C. § 112, second paragraph, is not mentioned in the examiner’s answer and, thus, presumably has been withdrawn by the examiner on appeal. 2Page: Previous 1 2 3 4 5 6 NextLast modified: November 3, 2007