Appeal No. 95-3682
Application No. 08/028,916
This appeal was taken from the examiner's decision
rejecting claims 1 through 10, 46 and 48 through 57. Claim
58, which is the only other claim remaining in the
application, stands withdrawn from further consideration by
the examiner as directed to a non-elected invention.
Claim 1, which is illustrative of the subject matter on
appeal, reads as follows:
1. An unsheared, water-soluble, branched, cationic,
poly-meric flocculant having a molecular weight of over one
million, a solution viscosity of at least about 1.8 mPa.s
measured in a Brookfield viscometer with a UL adapter at 25EC
on a 0.1 percent, by weight, polymer solution in 1M NaCl at 60
rpm, a solubility quotient of greater than about 30 percent
and a branching agent content of from about 4 to about 80
molar parts per million based on initial monomer content, said
flocculant being efficient when added as a true solution to
dispersions of suspended solids for the purpose of releasing
water therefrom.
The reference relied on by the examiner is:
Flesher et al. (Flesher) 4,720,346 Jan. 19, 1988
The issue presented for review is whether the examiner
erred in rejecting claims 1 through 10, 46 and 48 through 57
under 35 U.S.C. § 102 as anticipated by or, in the
alternative, under 35 U.S.C. § 103 as unpatentable over
Flesher.2
2In the Final Rejection mailed May 6, 1994 (Paper No.
9), the examiner also rejected claims 1 through 10, 46 and 48
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