Appeal No. 2003-0808
Application No. 09/343,334
adding a diphenylamine antioxidant to the
polyalphaolefin, to form the composition.
26. A method of producing a highly oxidatively
stable polyalphaolefin comprising the step of
hydrogenating a polyalphaolefin to a level of
hydrogenation in which a Lube Oil Oxidator level of at
least 45 hours is achieved when pressures between 35
and 2500 psi are applied.
The examiner relies on the following prior art references
as evidence of unpatentability:
Van Dyck Fear 2,980,603 Apr. 18, 1961
Sauer 3,113,167 Dec. 3, 1963
Cupples et al. 4,282,392 Aug. 4, 1981
(Cupples)
Wu et al. 5,276,227 Jan. 4, 1994
(Wu)
The claims on appeal stand rejected as follows (examiner’s
answer mailed Oct. 1, 2002, paper 20, pages 3-7):
I. claims 13 through 24 under 35 U.S.C. § 102(b) as
anticipated by Wu;
II. claims 1 through 8, 10 through 12, and 27 under 35
U.S.C. § 103(a) as unpatentable over Sauer in view of
Wu;
III. claims 1 through 4, 6 through 12, 26, and 28 under 35
U.S.C. § 103(a) as unpatentable over Cupples in view
of Wu; and
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