Appeal No. 2002-2036
Application 09/486,558
in which:
- R1 and R2, which are identical or different, are chosen
from a hydrogen atom, a halogen atom, a C1-C4 alkyl
radical, C1-C4 alkyl radical, a C1-C4 monohydroxyalkyl
radical, a C2-C4 polyhydroxyalkyl radical, a C1-C4 alkoxy
radical, a C1-C4 monohydroxyalkoxy radical and a C2-C4
polyhydroxyalkoxy radical;
- R3-R4, which are identical or different, are chosen from
a hydrogen atom, a C1-C4 alkyl radical, a C1-C4
monohydroxyalkyl radical, a C2-C4 polyhydroxyalkyl
radical and a C1-C4 monoaminoalkyl radical;
with the proviso that at least one of said radicals R1 and
R2 is a halogen atom.
The examiner relies upon the following references as
evidence of unpatentability:
Kalopissis et al. (Kalopissis) 3,918,896 Nov. 11, 1975
Clausen et al. (Clausen) 5,061,289 Oct. 29, 1991
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