Appeal No. 96-0733 Application 08/173,805 elements such that the expansion of the gel is accommodated in such a fashion that it is not lost when the connectors are mated and will return to its initial position upon demating. In particular, the appellants urge that there would have been no reason to make the Chan terminal and separate connector of elastomeric material because the patentee already had provided for the expansion of the gel by means of a flexible diaphragm. Hindsight, the appellants contend, is the only means by which the one of ordinary skill in the art would have been motivated to modify the Chan device in the manner proposed by the examiner. The guidance provided by our reviewing court with regard to rejections based on obviousness is as follows: The test for obviousness is what the combined teachings of the prior art would have suggested to one of ordinary skill in the art. See In re Keller, 642 F.2d 413, 425, 208 USPQ 871, 881 (CCPA 1981). In establishing a prima facie case of obviousness under 35 U.S.C. § 103, it is incumbent upon the examiner to provide a reason why one of ordinary skill in the art would have been led to modify a prior art reference or to combine reference teachings to arrive at the claimed invention. See Ex parte Clapp, 227 USPQ 972, 973 (BPAI 1985). To this end, the requisite motivation must stem 6Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007