Appeal No. 96-0632
Application 08/131,376
It has not been explained in the first instance why one of
ordinary skill in the art would have sought to make certain ribs
of Iwamoto relatively thick with respect to a rear edge portion.
In re Fritch, 972 F.2d 1260, 1266, 23 USPQ2d 1780, 1783-1784 (Fed.
Cir. 1992).
Claim 8 does not define one or more ribs of each shell of a
cartridge having a thickness greater than the thickness of the
rear edge portion of the shell. Nevertheless, the claim defines
upper and lower shells having a plurality of ribs, distortion
stresses in a rear edge portion of each of the shells due to said
ribs, and rear edge portions of upper and lower shells which bow
toward the opposing shell. The prior art combination simply does
not teach a cartridge comprising shells wherein a rear edge
portion of each shell has distortion stresses due to ribs, wherein
each rear edge portion bows toward an opposing shell. Nor has it
been explained why one of
ordinary skill in the art at the time the invention was made would
have found it obvious to modify the applied art in such a manner.
REVERSED
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