Appeal No. 96-4189
Application 08/279,157
the security system. Lewiner teaches that the user opens the
garage door by pressing a series of keys on the remote to
transmit a coded signal to cause the receiver to open the
garage door. We agree that Lewiner also teaches that the
series of code numbers entered by the user may be displayed by
the remote as they are entered. However, Lewiner does not
teach Appellant's claimed multiple sequence of interactions
between the user and the interior receiver.
We are not inclined to dispense with proof by
evidence when the proposition at issue is not supported by a
teaching in a
prior art reference, common knowledge or capable of
unquestion-able demonstration. Our reviewing court requires
this evidence in order to establish a prima facie case. In re
Knapp-Monarch Co., 296 F.2d 230, 232, 132 USPQ 6, 8 (CCPA
1961); In re Cofer, 354 F.2d 664, 668, 148 USPQ 268, 271-72
(CCPA 1966).
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