Appeal No. 1997-2925
Application No. 08/378,838
material. Fog discloses that "[t]wo types of reactions may be
responsible for the monitoring of air pollutants using
piezoelectric detectors," namely, reversible and nonreversible
reactions (page 2635, column 1). In our view, Fog discloses
advantages and disadvantages of both types of reactions, and
limits the disclosure of an operable coating material to a
particular unsaturated hydrocarbon polymer, 1,4-polybutadiene.
While Fog may provide an invitation for one of ordinary skill
in the art to explore other polymeric coatings which enter
into nonreversible reactions with ozone, we do not find that
such an invitation is sufficient evidence of obviousness for
utilizing the polyarylene thioether disclosed by Strutz as a
filter.
In conclusion, based on the foregoing, the examiner's
decision rejecting the appealed claims is reversed.
REVERSED
EDWARD C. KIMLIN )
Administrative Patent Judge )
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TERRY J. OWENS ) BOARD OF PATENT
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