Appeal No. 96-3454 Page 4
Application No. 08/260,295
OPINION
In reaching our decision in this appeal, we have given
careful consideration to the appellants' specification and
claims, to the applied prior art references, and to the
respective positions articulated by the appellants and the
examiner. For the reasons which follow, we cannot sustain the
rejection presented by the examiner in this appeal.
Berrebi discloses presulfurizing catalysts using a first
step of treating the catalysts with polysulfide sulfurization
agents in the absence of hydrogen (column 4, lines 7-32). The
catalyst may thereafter be activated by treatment with
hydrogen (column 4, lines 32-38). Seiver discloses the use of
sulfur containing compounds selected from among a list of
compounds that includes dimethyl sulfoxide that are used
during the decomposition of a catalyst precursor in the
presence of hydrogen (column 9, line 30 through column 10,
line 60).
The position of the examiner is that the sulfur
containing compounds of Seiver are combinable with the
sulfurization agents of Berrebi for use in the presulfurizing
process of Berrebi since it would have been obvious to combine
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