Appeal No. 1997-0722
Application 08/364,589
of at least , including from abut [sic, about] 1 to about 991
mole percent vinylamine and from about 1 to abut [sic, about]
99 mole percent of at least one monomer selected from the
group consisting of amidine, vinylformamide, vinyl alcohol,
vinyl acetate, vinyl pyrrolidinone and the esters, amides,
nitriles and salts of acrylic acid and methacrylic acid;
coagulating and flocculating the suspended solids; and
separating the coagulated and flocculated suspended
solids from the waste water.
The references of record relied upon by the examiner are:
Nowak et al. (Nowak) 3,715,336 Feb. 6, 1973
Miller 5,174,903 Dec. 29, 1992
The appealed claims stand finally rejected under 35
U.S.C.
§ 103 over Miller combined with Nowak.
We affirm.
As evidence of obviousness of the herein claimed process,
the examiner relies on the combined disclosures of Miller and
Nowak. Appellants do not dispute the examiner's finding that
their claimed method for clarifying food processing waste
containing suspended solids is identically described by Miller
1Based on the amendment filed May 6, 1996 (Paper No. 9)
appellants apparently intended to limit the molecular weight
of the vinylamine polymer to "at least 10,000". However, the
claims were not properly amended to reflect this value.
-3-
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007