Appeal No. 1997-1230
Application 08/274,807
the same as those of the present application.
Claim 1 of the ‘379 patent is directed to a recording
platter for a cartridge disk comprising: (1) a disk with a
magnetic coating, (2) an injection-molded plastic hub
comprising a liquid crystal plastic material having a twenty-
five micrometer molding process accuracy, and (3) a hub top
for attaching the disk to the hub and for maintaining a center
and axial location of the disk on the hub.
Claim 1 of the ‘379 patent does not specify that the hub
of the claimed disk has molding accuracies in the range of
five to ten micrometers as required by appealed claim 1, nor
does claim 1 of the ‘379 patent specify that the hub top is a
screw top mated to the hub with twist-locks, also as required
by appealed claim 1. The examiner should determine whether or
not these differences would have been obvious to one of
ordinary skill in the art at the time of appellants’
invention, and if so, enter a new rejection of claim 1, as
well as any of the other presently appealed claims as may be
appropriate, under the judicially created doctrine of
obviousness type double patenting.
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