Appeal No. 1996-3017
Application No. 08/851,810
steps in a sublimation sequence along with their attendant
advantages. In re Thompson, 545 F.2d 1290, 1294,
192 USPQ 275, 277 (CCPA 1976); In re Marzocchi, 456 F.2d 790,
793, 173 USPQ 228, 229-30 (CCPA 1972).
As a final point, we note that appellant bases no
argument upon objective evidence of nonobviousness, such as
unexpected results which attach to the use of the claimed
crystallization and sublimation techniques for isolating
alkyl-pyrazines
viz-à-viz the distillation and extraction techniques disclosed
by the primary references.
In conclusion, based on the foregoing and the reasons
well-stated by the examiner, the examiner's decision rejecting
the appealed claims is affirmed.
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