Appeal 2007-2082
Application 10/795,457
For the foregoing reasons and those stated in the Brief, we cannot
sustain the rejection of the claims on appeal under the first paragraph of
§ 112.
C. The Rejections under § 103(a)
We determine the following factual findings from the record in this
appeal:
(1) Wada discloses a hydraulic inorganic composition that is plastic
and moldable and used to produce a hardened molded article,
where the composition includes gypsum, 3-10% of PTFE fibers,
and water; Wada exemplifies a method of producing the hardened
molding material where water is added to the gypsum-PTFE
powder mixture (Abstract; col. 1, ll. 5-13; col. 2, ll. 32-40 and 49-
50; col. 5, ll. 5-12 and 48-65; and Example 1, col. 6, ll. 54-60);
(2) Morrell discloses an aqueous suspension of polymeric organic
substances having elastomeric and plastic properties which are
added to conventional dental casting compositions to produce
dental impressions, casts, and models, where the composition
includes alginates, gypsum (calcium sulfate), and certain fluorides
such as PTFE (in an amount of 1-10%) (Abstract; col. 1, ll. 22-35
and 58-72; col. 6, ll. 4-6 and 49; col. 10, ll. 45-48; col. 12, l. 30
and 36-40; col. 17, ll. 4-7; and claim 2, col. 20, l. 25);
(3) Morrell discloses various methods of mixing the ingredients, i.e.,
all the solid materials are mixed and then water is added to form
an impression or adding an aqueous suspension of PTFE to a
mixture of “stone” (gypsum) (col. 2, ll. 28-31; col. 4, ll. 19-22;
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