Appeal No. 1999-1332
Application No. 08/591,857
supported by flat sheets attached to themselves
and to the filter pack by adhesive and so
that an equivalent thin, lightweight frame is
formed around the filter pack. [Answer, page 4.]
Although not expressly stated, it appears to be the examiner’s
view that the case of the above modified Allan filter would
correspond to the case of the claimed device in all respects.
We cannot support the examiner’s proposed combination of
Allan and Wasielewski. It is crystal clear to us from a
reading of the introductory section of Allan’s specification
(column 1, line 16, through column 2, line 16) that
Wasielewski’s method of fabricating air filters embodies the
very problems Allan hopes to avoid. For example, at column 1,
lines 20-29, Allan describes a “significant problem”
associated with the disposal of filters that include
relatively heavy and rigid wooden or metal frame components,
which frame components, in our view, would correspond
precisely to the frame components 24, 58, 60, 66 of
Wasielewski. Further, at column 1, line 38, through column 2,
line 2, Allan describes a “further problem” associated with a
method of manufacturing filters that very closely tracks the
method employed by Wasielewski, i.e., a method that involves
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