Appeal No. 96-2121
Application 08/252,984
Kahn, Billinger and Srinivasan.
Kahn discloses a call back system wherein the caller has to
manually enter a security code for identification. Billinger
discloses the use of ANI, automatic information on the number of
the calling party, not DID, information on the number called, to
ascertain the identity of a calling subscriber on a resell
telephone communications system. Srinivasan, as described above,
does not teach look up of any preassigned list of direct inward
dial numbers to ascertain the identity or call back number of the
calling party. The combination of these references do not
reasonably suggest the appellant’s claimed invention.
In footnote 3 in the answer, the examiner makes further
reference to other items of prior art. It should be noted,
however, that these references were not positively stated or
otherwise included in the rejection and thus cannot be properly
relied on to show a missing feature. In re Hoch. 428 F.2d 1341,
1342 n.3, 166 USPQ 406, 407 n.3 (CCPA 1970). In any event, the
examiner has not asserted that any of these items of prior art
discloses using the direct inward dial number provided by the
telephone network or exchange to identify a calling subscriber
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