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publication and is not binding precedent of the Board.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. 15
UNITED STATES PATENT AND TRADEMARK OFFICE
_____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
_____________
Ex parte DIETER UNRATH
and
MARGIT HOFMANN
_____________
Appeal No. 1999-1332
Application No. 08/591,857
______________
ON BRIEF
_______________
Before COHEN, STAAB, and NASE, Administrative Patent Judges.
STAAB, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on an appeal from the final rejection
of claims 1-14, all the claims pending in the application.
Appellants’ invention relates to cassette filters, and in
particular to cassette filters comprising a case surrounding a
dimensionally stable filter pack in a dust-tight manner
(specification, page 1). As further explained on page 2 of
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