The opinion in support of the decision being entered today was not written for
publication and is not binding precedent of the Board.
Paper No. 25
UNITED STATES PATENT AND TRADEMARK OFFICE
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BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
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Ex parte JAMES T. PETTINGELL and JAMES T. SNYDER
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Appeal No. 1999-0832
Application No. 08/147,793
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ON BRIEF
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Before RUGGIERO, DIXON, and LEVY, Administrative Patent Judges.
LEVY, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal under 35 U.S.C. § 134 from
the examiner’s final rejection of claims 1-7, which are all of
the claims pending in this application.
BACKGROUND
Appellants' invention relates to a variable dark-field
illumination system for micro and macro optical imagers. An
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