Appeal No. 96-4043
Application 08/235,538
the claimed light-fabric would provide excellent light-lock
characteristics. Furthermore, the Okamoto fabric is not napped
and sheared as required by the claims” (main brief, page 3).
Given the combined teachings of Mizuno and Okamoto, the
appellant’s argument is not persuasive.
As indicated above, Mizuno teaches that the light-trapping
components of the photographic film cassette disclosed therein
may be made of any number of different materials including raised
woven polyester fabrics. Okamoto discloses a raised and sheared
woven polyester fabric of the type defined in claim 12 and
teaches that such has uniform suede-like properties and a good
cover of raised fibers. One of ordinary skill in the art would
have readily appreciated the Okamoto fabric, with its uniform
properties and good cover of raised fibers, to be one of the many
suitable materials contemplated by Mizuno for use as a light-
trapping component. Given this appreciation, the artisan would
have found it obvious to so utilize the Okamoto fabric in the
Mizuno cassette. The appellant has not challenged the examiner’s
official notice that staple yarns are old and well known for
their durability, or the examiner’s additional conclusion that
the use of such yarns in the fabric of Mizuno as proposed to be
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