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was not written for publication and is not binding precedent of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. 23
UNITED STATES PATENT AND TRADEMARK OFFICE
_______________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
_______________
Ex parte PATRICK MERTENS, BENNY JANSEN,
WERNER VAN DE WYNCKEL and FRANK MICHIELS
______________
Appeal No. 1998-2337
Application 08/651,442
_______________
HEARD: May 8, 2001
_______________
Before GARRIS, WARREN and OWENS, Administrative Patent Judges.
WARREN, Administrative Patent Judge.
Decision on Appeal
This is an appeal under 35 U.S.C. § 134 from the decision of the examiner finally rejecting
claims 1, 3 through 6, 8 and 9. Claims 10 and 11 are also of record and have been withdrawn from
consideration by the examiner under 37 CFR § 1.142(b). Claim 1 is illustrative of the claims on appeal:
1. Apparatus for performing electrolytic desilvering of a photographic processing solution
comprising an electrolysis unit comprising a cathode, an anode and a reference electrode, said reference
electrode being a pH sensitive electrode, and said apparatus including a potentiostatic unit for
maintaining said cathode at a constant potential versus said reference electrode whereby adjustments for
pH variations are automatically performed controlling said desilvering.
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