Appeal No. 1999-0422 Page 8
Application No. 08/628,805
The examiner finds that Serizawa discloses all of the
features of claim 9 "with the exception of the fins shaped in
the form of a wave such that the wave peaks correspond
approximately to the width of the groove" (answer, page 4).
It is the examiner's position, however, that it would have
been obvious to one of ordinary skill in the art at the time
of the appellants' invention to employ wavy fins in the
Serizawa device, "where the wave peaks on the fin correspond
approximately to the width of a groove formed in a base for
the purpose of increasing the heat transfer surface area of
the fins" (answer, page 4).
From our viewpoint, while Hess may have suggested the
provision of ridges or projections on the lateral surfaces of
the fins of Serizawa to increase the heat transfer surfaces
thereof, Hess does not appear to have taught or suggested
provision of any such ridges or projections "in the region
where [the fins] join the base," as required by claim 9.
Figure 3 of Hess, for example, does not illustrate any
"structures" (8) in the foot profile region which lies in the
channel (16,17).
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