Appeal No. 1999-1332
Application No. 08/591,857
(e) claims 11-14, unpatentable over Allan in view of
Wasielewski, Lippold, and Withrington.
Reference is made to appellants’ brief (Paper No. 13) and
to the examiner’s answer (Paper No. 14) for the respective
positions of appellants and the examiner regarding the merits
of these rejections.
Opinion
Upon review of the teachings of the applied references
and the respective positions of the examiner and appellants,
it is our opinion that the standing rejections are not
sustainable. Our reasons follow.
Allan, the primary reference in each of the rejections,
pertains to an air filter comprising a filter pack 22
surrounded by a relatively thin and lightweight frame 32
comprising four sides 34-37. The frame is composed of a
relatively hard, air impermeable molded material, such as
plastic or fiberglass (column 4, lines 34-40). The method of
fabricating the frame is described at column 4, line 60,
through column 5, line 45. Briefly, a mold 45 containing a
moldable liquid 44 which is adapted to set and form the
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