Appeal No. 1998-2297
Application 08/353,622
§ 103 as being unpatentable over McLaughlin in combination
with Thomas.
OPINION
We reverse the aforementioned rejection. We need to
address only claim 1, which is the sole independent claim.
McLaughlin discloses “[a] dry glass cleaner in the form
of a flexible, porous substrate base which is impregnated with
fine particles of a water-insoluble solid which are adapted to
disperse the dirt present on a soiled glass surface into a
thin, opaque film when the cleaner is moistened and wiped over
the glass surface” (abstract). “When the base, which may be
in the form of a porous sheet, is wetted and wiped over a
glass, ceramic, or other nonporous surface, the water
insoluble material is physically transferred to the glass
surface where it mixes with the soil to leave a thin, visible
film or haze. The film or haze, either in the dry, partially
dry, or wet state, is then wiped off the window with an
uncoated paper or cloth towel” (page 3, lines 8-15).
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