Appeal No. 2005-2512 Reexamination Control No. 90/006,431 before 11/8/1994 (See In re Epstein, 32 F.3d 1559, 1564, 31 USPQ2d 1817, 1820 (Fed. Cir. 1994)).” Fin.Act. 8 para. 18. This argument confuses the status of the RailMill documents as prior printed publications, whose contents can be relied on to reject claims under reexamination, with their status as evidence of prior public knowledge or use of the RailMill product, which knowledge or use is not a proper basis for rejecting claims under reexamination. See 37 CFR § 1.552: § 1.552 Scope of reexamination in ex parte reexamination proceedings. (a) Claims in an ex parte reexamination proceeding will be examined on the basis of patents or printed publications and, with respect to subject matter added or deleted in the reexamination proceeding, on the basis of the requirements of 35 U.S.C. 112. (b) Claims in an ex parte reexamination proceeding will not be permitted to enlarge the scope of the claims of the patent. (c) Issues other than those indicated in paragraphs (a) and (b) of this section will not be resolved in a reexamination proceeding. . . . See also MPEP § 2258, subsection I, part B (“A rejection on prior public use or sale, insufficiency of disclosure, etc., cannot be made even if it relies on a prior art patent or printed publication.”). In Epstein, the court did not consider or approve of relying on product release dates to establish publication dates, as the examiner is asking us to do. Instead, the court approved of the board’s reliance on product release dates given in subsequently published abstracts to establish that the products were placed on sale on those release dates. As further evidence that the RailMill documents were published prior to appellant’s April 17, 1995, filing date, the examiner contends that because the 18Page: Previous 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 NextLast modified: November 3, 2007