Appeal No. 1995-4804
Application No. 07/861,387
extraction stage. See column 4, lines 3-32 and column 7,
lines 17-28. According to column 7, lines 17-21, of Stawicki:
It is believed that oxygen introduced into the
dilution zone is effective to permit chemicals
downstream of the extraction stage to which oxygen
is supplied to react more fully with the pulp rather
than with compounds dissolved in or carried by the
filtrate.
Nowhere does Stawicki indicate that oxygen will function
similarly as the reverse osmosis described in Griggs. Nor
does Stawicki indicate that oxidizing the organic in the wash
water will make the ozone bleaching described in Griggs more
effective. Under this circumstance, we cannot agree with the
examiner that Stawicki would have suggested adding oxygen to
the washing liquid described in Griggs prior to its use in the
washing step which is immediately before an ozone bleaching
stage. Note that the extraction stage described in Griggs
comes after an ozone bleaching stage. The remaining
references, namely Azarniouch, Phillips and Elton, relied upon
by the examiner to show the features recited in dependent
claims 3 through 10 and 14 do not remedy the deficiencies in
Griggs and Stawicki.
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