Appeal No. 1997-0844
Application No. 08/269,979
attached to the Brief, entered as per the Advisory Action
dated Jan. 31, 1996, Paper No. 13, and the Answer, Paper No.
17, page 1, respectively). Claims 18, 25 and 28 are the only
claims remaining in this application.
According to appellants, the invention is directed to a
nearly neutral process water made by subjecting scrubbed wet-
process vapors along with drainage water from a gypsum stack
or pond to neutralizing/clarifying separation and pH-
adjustment and a composite process water made from mixing this
nearly neutral process water with an acid process water
(Brief, page 1). Appellants state that claims 18, 25 and 28
do not stand or fall together and present specific,
substantive reasons for the separate patentability of each
claim (Brief, pages 4-10; see the Answer, page 2). In
accordance with 37 CFR § 1.192(c)(7)(1995), we therefore
consider each claim separately. The claims are reproduced and
attached as an Appendix to this decision.
The examiner has relied upon the following references to
support the rejections on appeal:
Zibrida 4,698,163 Oct. 6, 1987
Davister et al. (Davister) 4,777,027 Oct. 11, 1988
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