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written for publication and is not binding precedent of the Board.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. 18
UNITED STATES PATENT AND TRADEMARK OFFICE
____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
____________
Ex parte FRANCES H. BENTON
____________
Appeal No. 1998-2465
Application No. 08/599,192
____________
ON BRIEF
____________
Before FLEMING, DIXON, and GROSS, Administrative Patent Judges.
GROSS, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal from the examiner's final
rejection of claims 1, 3, 4, 7, 13 through 19, 21 through 23,
and 28, which are all of the claims pending in this
application.
Appellant's invention relates to a fluid overfill
detection probe. The probe includes an infrared light source,
a prism made of a fluoropolymer material, and a photodetector.
When the fluid being detected contacts the prism, the prism
surfaces internally reflect an optical signal from the light
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