Appeal No. 1995-2831 Application No. 07/908,376 phosphate moiety, i.e., a phosphomannosyl residue, would have been reasonably expected to facilitate entry of an oligonucleotide into a cell. Thus, we find the examiner has not carried his burden of establishing a prima facie case of obviousness and has relied on impermissible hindsight in making his determination of obviousness. In re Fritch, 972 F.2d 1260, 1266, 23 USPQ2d 1780, 1784 (Fed. Cir. 1992) (“It is impermissible to engage in hindsight reconstruction of the claimed invention, using the applicant’s structure as a template and selecting elements from references to fill the gaps.). Accordingly, the rejection of claims 9, 26 and 53-55 under 35 U.S.C. § 103 over Lemaitre in view of Vestweber, Leamon and Hoflack is reversed. - 6 -Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007