Appeal No. 1997-0538
Application No. 08/262,168
Nilssen, 851 F.2d 1401, 1403, 7 USPQ2d 1500, 1502 (Fed. Cir.
1988)). Rather, the test for obviousness is what the combined
teachings of the prior art references would have fairly
suggested to those of ordinary skill in the art. In re Young,
927 F.2d 588, 591, 18 USPQ2d 1089, 1091 (Fed. Cir. 1991); In
re Keller, 642 F.2d 413, 425, 208 USPQ 871, 881 (CCPA 1981).
In evaluating the prior art references, it is proper to take
into account not only the specific teachings of the references
but also the inferences which one skilled in the art would
reasonably be expected to draw therefrom. In re Preda, 401
F.2d 825, 826, 159 USPQ 342, 344 (CCPA 1968).
Here, as indicated supra, we find that Kim discloses
a method for producing articles of gamma
titanium aluminide alloy having improved properties
which comprises the steps of:(a)shaping the article
at a temperature in the approximate range of about
130° C. below the titanium-aluminum eutectoid
temperature of the alloy to about 20° C. below the
alpha-transus temperature of the alloy for about 15
to 120 minutes; (b) heat treating the thus-shaped
article at about the alpha-transus temperature of
the alloy for about 15 to 20 minutes; and (c) aging
the thus-heat treated article at a temperature
between about 750° and 1050° C. for about 4 to 300
hours.
See column 2, lines 47-57.
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