Interference No. 104,158 manufacture must be held to be a mere designer’s choice, obvious as well within the ordinary skill in this art. Since the subject matter of claim 7 would have been obvious from the prior art, including the references stated above, in combination with Althaus claims 1-6, under the 37 CFR § 1.601(n) test, claim 7 is properly designated as corresponding to the count. Althaus Claim 9 In his decision on motions, the APJ determined that the subject matter of claim 9 was directed to a separate patentable invention. We review the showing by Althaus that was a basis for the motion granted by the APJ. The test for separate patentable invention is the already articulated 37 CFR § 1.601(n). The reason given by the APJ was that the subject matter of guide rails would not have been an obvious inclusion on the razor of Althaus’ claims 1-6. However, as we have noted above, Kirk, Terry and Ishida all show guide rails to be conventional in 18Page: Previous 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 NextLast modified: November 3, 2007