Appeal No. 97-1133
Application 08/424,247
cellulose acetate, which may be tinted, can be employed to
provide the desired glare elimination, without the need of the
fairly heavy tinting required in the prior art devices.
After a collective evaluation of the teachings of
the applied references, it is our opinion that it would have
been obvious to one of ordinary skill in the art at the time
of appellant's invention to have made the shade members (8) of
Klose from a transparent tinted plastic material so as to
block a substantial portion of sunlight or other glare
producing lights that may impinge on the window, and to
provide such an advantage without otherwise obscuring the
driver's view of the roadway, as
clearly suggested in Stulbach or Kivikink. We further
consider that, based on the teachings of Selph, a person of
ordinary skill in the art would have been led to select a
transparent, tinted plastic polarized material as the
particular material from which to make the shades (8) of Klose
so as to gain the advantages noted in Selph (i.e., so as to
9
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