Appeal No. 96-3242
Application 08/458,012
73 F.3d 1085, 1087, 37 USPQ2d 1237, 1239 (Fed. Cir. 1995),
cert. denied, 117 S.Ct. 80 (1996), citing W. L. Gore &
Assocs., Inc. v. Garlock, Inc., 721 F.2d 1540, 1548, 220 USPQ
303, 309 (Fed. Cir. 1983), cert. denied, 469 U.S. 851 (1984).
Upon a review of Miura, we fail to find any teaching or
suggestion to modify Miura to obtain the Appellants' claimed
invention. We are not inclined to dispense with proof by
evidence when the proposition at issue is not supported by a
teaching in a prior art reference or shown to be common
knowledge of unquestionable demonstration. Our reviewing
court requires this evidence in order to establish a prima
facie case. In re Knapp-Monarch Co., 296 F.2d 230, 232, 132
USPQ 6, 8 (CCPA 1961); In re Cofer, 354 F.2d 664, 668, 148
USPQ 268, 271-72 (CCPA 1966).
In view of the foregoing, the decision of the Examiner
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