Appeal No. 1998-1329
Application 08/642,595
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 Hospital Systems, Inc. v.
Montefiore Hospital, 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).
Appellants’ primary argument in the Briefs centers on
their contention that the Examiner has not established that
the “uneven tension” limitation of each of the independent
claims 1 and 21 on appeal is taught or suggested by Lo, the
primary reference relied upon for this feature, or any of the
6
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