Appeal No. 97-1398
Application 08/295,225
disclose that the front and rear surfaces of the leader tape can
have different scrubbing materials, as required by claims 2 and
30.
Siddiq's invention is a cleaning cassette (Fig. 6) for a
VCR. The cassette tape has at least one segment for cleaning the
magnetic head spliced together with at least one segment for
providing diagnostic/instructional information for the user
(col. 1, lines 44-47; Fig. 1). The cleaning segment may take any
of various forms, such as a fabric layer bonded to a polymeric
substrate or a homogeneous material of the type disclosed in
copending application 07/182,829, which is incorporated by
reference (col. 1, lines 53-62). Because the cleaning segment
does not employ a highly abrasive magnetic coating, it is
possible to use liquid cleaners (col. 2, lines 29-32). The
cleaning tape may include cleaning segments of different types to
provide "added cleaning effectiveness" (col. 4, lines 9-12). The
tape may also include a polishing segment following a cleaning
segment (col. 3, line 65 to col. 4, line 4). Siddiq does not
disclose a back side scrubbing material, as required by claims 2
and 30.
The examiner contends that Siddiq satisfies claims 3's
limitation that "the magnetic material and the scrubbing material
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