Appeal 2007-4101
Application 09/962,972
Further details of the appealed subject matter are recited in representative
product-by-process claim 11 reproduced below:
1. A unit suitable for the through-flow of a fluid medium for
the removal of a contaminant from the fluid medium
comprising
a cartridge housing, which comprises a vessel having a centrally
positioned inlet pipe, flat filter layers, a cover ensuring the
inflow and outflow of the medium, together with a base part,
wherein the cartridge housing is filled with at least partially
some particles prepared from fine-particle iron oxide and/or
oxyhydroxide, which are prepared from an aqueous suspension,
wherein the fine-particle iron oxide and/or iron oxyhydroxide
includes a particle size of up to 500 nm and a BET surface area
of 50 to 500 m2/g.
As evidence of unpatentability of the claimed subject matter, the
Examiner has relied upon the following references:
Price US 3,266,628 Aug. 16, 1966
Sylva US 4,477,347 Oct. 16, 1984
Nieweg US 5,049,272 Sep. 17, 1991
Strand US 5,340,478 Aug. 23, 1994
Blaney US 5,538,629 Jul. 23, 1996
Wilkins US 5,919,357 Jul. 6, 1999
Klabunde US 6,093,236 Jul. 25, 2000
1 Product-by-process claims are claims directed to products defined at least
in part by process limitations. Claim 1 is directed to a unit containing a
pellet which is defined at least in part by a process limitation.
3
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