Appeal No. 2004-0831
Application 09/650,176
Fischer ‘200 addresses a system and method involving a
public key/signature cryptosystem with enhanced digital signature
certification, wherein an electronic certificate including a
digest of a digital message and other data is assembled into a
certificate and signed by a trusted authority, with the certifi-
cate then being attached to the encrypted digital message for
authentication purposes. However, there is no teaching or
suggestion in Fischer ‘200 concerning a payment scheme for
processing and signing the certificate, and no reason we can see
for attempting to modify the postage meter and security imprint
arrangement of Windel in view of the completely different system
and method of Fischer ‘200.
Since neither the applied references nor the examiner
provides an adequate factual basis to establish that the method
of claim 35 on appeal would have been obvious to one of ordinary
skill in the art at the time of appellants’ invention, it follows
that we will not sustain the examiner’s rejection of claim 35
under 35 U.S.C. § 103(a).
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