Appeal No. 97-3926
Application 08/481,091
removing the cleaning cassette after the first set of
instructions is complete.
38. A method of cleaning a tape path of a VCR having a
head comprising the steps of:
loading into the VCR a cleaning cassette comprising a
tape having a front side, a back side, scrubbing material and
magnetic material prerecorded with audio sounds and video
images located in the same length of tape portion on the front
side of the tape to permit simultaneous head cleaning and
playing of recorded signals, and scrubbing material on the
back side of the tape;
operating the VCR in the play mode for a period of time;
operating the VCR in the reverse scan mode for a period
of time; and
ejecting the cleaning cassette from the VCR.
C. The references and rejections
The rejections are based on the following U.S. patents:
Nowicki et al. (Nowicki) 3,978,520 Aug.
31, 1976
Siddiq 4,893,209 Jan. 9,
1990
Claims 35-37 stand rejected under 35 U.S.C. § 102(b) as
anticipated by Siddiq.
Claims 35-43 stand rejected under § 103 for obviousness
over Nowicki in view of Siddiq.
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