Appeal 2006-2494
Application 10/651,553
I. APPEALED SUBJECT MATTER
The subject matter on appeal is directed to a method for
manufacturing a honeycomb ceramic material that can be used as a catalytic
converter to reduce the pollution emissions from various gasoline and diesel
engines (Specification, 0001 and 0004). Details of the appealed subject
matter are recited in representative claim 1, which is reproduced below:
1. A method of manufacturing a honeycomb ceramic substrate
comprising:
providing a plasticized ceramic batch material;
filtering the ceramic batch material through a filter screen comprising
filter wires having a wedge shaped cross section;
extruding the filtered ceramic batch material through a die to form a
honeycomb ceramic substrate.
II. PRIOR ART
As evidence of unpatentability of the claimed subject matter, the
Examiner has relied upon the following references:
Orso US 3,888,963 Jun. 10, 1975
Peters US 4,574,459 Mar. 11, 1986
Baba US 4,839,120 Jun. 13, 1989
III. REJECTIONS
The Examiner has rejected the claims on appeal as follows:
1) Claim 1 under 35 U.S.C. § 102(b) as anticipated by the disclosure of
Baba;
2) Claim 2 under 35 U.S.C. § 103(a) as unpatentable over the combined
disclosures of Baba and Orso; and
2
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