Appeal No. 1999-2454 Page 6
Application No. 08/656,106
§ 112, second paragraph, is whether the claims meet the
threshold requirements of clarity and precision, not whether
more suitable language or modes of expression are available.
Some latitude in the manner of expression and the aptness of
terms is permitted even though the claim language is not as
precise as the examiner might desire. If the scope of the
invention sought to be patented can be determined from the
language of the claims with a reasonable degree of certainty,
a rejection of the claims under 35 U.S.C. § 112, second
paragraph, is inappropriate.
Furthermore, appellants may use functional language,
alternative expressions, negative limitations, or any style of
expression or format of claim which makes clear the boundaries
of the subject matter for which protection is sought. As
noted by the Court in In re Swinehart, 439 F.2d 210, 160 USPQ
226 (CCPA 1971), a claim may not be rejected solely because of
the type of language used to define the subject matter for
which patent protection is sought.
With this as background, we turn to the rejection under
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