Appeal No. 97-3289
Application 08/550,895
THE REJECTION
Claims 9-23 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Nail in view of Walker, Brock and
Fraige.
The rejection is explained in the Examiner's Answer.
The opposing viewpoints of the appellants are set
forth in the Brief.
OPINION
The rejection before us is under 35 U.S.C. § 103,
and therefore the examiner bears the initial burden of pre-
senting a prima facie case of obviousness (see In re
Rijckaert, 9 F.3d 1531, 1532, 28 USPQ2d 1955, 1956 (Fed. Cir.
1993)), which is established when the teachings of the prior
art itself would
appear to have suggested the claimed subject matter to one of
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