Appeal No. 1999-2242
Application No. 08/137,056
Mohiuddin and agree with the examiner that the invention set
forth in claims 12 through 14 would have been obvious to one
of ordinary skill in the art at the time of the appellant’s
invention.
The test for obviousness is what the combined teachings
of the references would have suggested to one of ordinary
skill in the art. See In re Young, 927 F.2d 588, 591, 18
USPQ2d 1089, 1091 (Fed. Cir. 1991) and In re Keller, 642 F.2d
413, 425, 208 USPQ 871, 881 (CCPA 1981).
The teachings of Yasukawa have been set forth above.
Church discloses a method of molding rubber articles in
which the press components, e.g., the bottom surface 23 of
plunger 7 and the interior walls of cavity 5, which contact an
uncured rubber charge, are coated with TEFLON (PTFE) to
provide a generally permanent non-sticking coating thereto.
According to Church, the permanent PTFE coating eliminates the
use of mold release material during each molding operation and
its resultant cost and contamination of the rubber charge.
See col. 6, ll. 17-28 and claim 4.
Mohiuddin discloses a method for producing a molded
plastic part comprising a plastic substrate and a firmly
12
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