Appeal No. 2000-2020 Application No. 09/050,558 having ordinary skill in the pertinent art would have been led to modify the prior art or to combine prior art references to arrive at the claimed invention. Such reason must stem from some teaching, suggestion or implication in the prior art as a whole or knowledge generally available to one having ordinary skill in the art. Uniroyal Inc. v. Rudkin-Wiley Corp., 837 F.2d 1044, 1051, 5 USPQ2d 1434, 1438 (Fed. Cir.), cert. denied, 488 U.S. 825 (1988); Ashland Oil, Inc. v. Delta Resins & Refractories, Inc., 776 F.2d 281, 293, 227 USPQ 657, 664 (Fed. Cir. 1985), cert. denied, 475 U.S. 1017 (1986); ACS Hosp. Sys., Inc. v. Montefiore Hosp., 732 F.2d 1572, 1577, 221 USPQ 929, 933 (Fed. Cir. 1984). These showings by the Examiner are an essential part of complying with the burden of presenting a prima facie case of obviousness. Note In re Oetiker, 977 F.2d 1443, 1445, 24 USPQ2d 1443, 1444 (Fed. Cir. 1992). With respect to independent claims 1 and 6, the Examiner, as the basis for the obviousness rejection, proposes to modify the electric light bulb disclosure of Van Heeswijk. According to the Examiner (Answer, page 3), Van Heeswijk discloses the claimed invention except for “...elastic pieces that [sic, are] resilient about an outer peripheral surface of the base and extend towards 4Page: Previous 1 2 3 4 5 6 7 8 NextLast modified: November 3, 2007