Appeal No. 1997-0486
Application 08/417,290
wherein
R , R , R and R are independently an alkylene group of 13 4 5 6
to 8 carbon atoms,
W is a covalent bond or methylene, ethylene or a
cycloalkylene having 5 to 7 carbon atoms in the ring, provided
that when W is cycloalkylene, the two nitrogen atoms are
attached to the ring at adjacent carbon atoms, and
M , M , M and M are independently hydrogen or a1 2 3 4
monovalent cation.
THE REFERENCES
Yamada et al. (Yamada) 4,839,273 Jun. 13,
1989
Cullinan et al. (Cullinan) 4,921,779 May 1,
1990
Fujita et al. (Fujita) 5,334,493 Aug. 2,
1994
THE REJECTIONS
The claims stand rejected under 35 U.S.C. § 103 as
follows: claims 1-5, 7, 8, 10-15 and 17-22 over Cullinan in
view of Yamada, and claim 9 over Cullinan in view of Yamada
and Fujita.
OPINION
We have carefully considered all of the arguments
advanced by appellants and the examiner and agree with
appellants that the aforementioned rejections are not well
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