The opinion in support of the decision being entered today was not written for
publication and is not binding precedent of the Board.
UNITED STATES PATENT AND TRADEMARK OFFICE
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BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
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Ex parte PETER PFEUFFER
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Appeal No. 2005-2487
Application 08/900,254
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Before PAK, OWENS, and MOORE, Administrative Patent Judges.
MOORE, Administrative Patent Judge.
DECISION ON APPEAL
This appeal was taken from the examiner's decision rejecting claim 1, the only
claim remaining pending in the application. Claims 2-8 have been canceled.
I. Background
The invention relates to a method of manufacturing a pleated filter material. The
claim recites the one-step calendering and bonding of a non-woven material using a
profiled calender roll. This is said to result in the bonding of the fibrous web having
“spacers” in a “tension-free” manner without “inhomogeneities” or “flat bonding.” The
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