Appeal No. 1999-2317 Page 6
Application No. 08/634,543
said central office switching systems that said second
subscriber line is available and that a processor is
associated with said second of said central office switching
systems ....” Accordingly, claims 1-9 require inter alia
signaling through a CCIS network to establish that a
destination subscriber line is not busy, holding the line for
a call, and signaling through the network to notify a calling
CO that the line is available and that a processor is
associated therewith.
The examiner fails to show a teaching or suggestion of
the limitations in the applied prior art. "’A prima facie
case of obviousness is established when the teachings from the
prior art itself would appear to have suggested the claimed
subject matter to a person of ordinary skill in the art.’" In
re Bell, 991 F.2d 781, 782, 26 USPQ2d 1529, 1531 (Fed. Cir.
1993) (quoting In re Rinehart, 531 F.2d 1048, 1051, 189 USPQ
143, 147 (CCPA 1976)).
Here, although Gordon discloses that its “UniPost system
can be used for providing a direct telephone link using the
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