Appeal No. 1998-3049
Application No. 08/463,558
OBVIOUSNESS-TYPE DOUBLE PATENTING REJECTION
Claims 18 through 23, 25 through 30 and 32 through 41 are
rejected under the judicially created doctrine of obviousness-type
double patenting as unpatentable over claims 18 through 35 of
copending Application 08/462,691. Contrary to appellants’
argument, the subject matter defined by claims 18 through 35 of
copending Application 08/462,691 would have rendered the presently
claimed subject matter obvious to one of ordinary skill in the art.
Claim 18 of the copending Application reads as follows:
18. A method of bleaching cellulose pulp having a
consistency between 5-25% in a stage wherein ozone is the
only bleaching agent in the stage, comprising the steps
of:
(a) introducing the pulp with a consistency between 5-25%
into a fluidizing mixer;
(b) introducing a mixture of ozone, serving as the only
bleaching agent in the stage, and oxygen gas into the
fluidizing mixer;
(c) intensely mixing the pulp and the gas in the
fluidizing mixer for approximately one second so as to
form a foam, the ozone, as the only bleaching agent in
the stage, reacting with the pulp while in foam
configuration to effect bleaching; and
(d) removing residual gas from the pulp after the
reaction in step (c).
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