Appeal No. 2001-2094
Application 09/203,894
the two specified antioxidants to the lubricating oil. Claim 1,
directed toward the composition, is illustrative:
1. A composition comprising lubricating oil and at least a
first antioxidant and a second antioxidant, the first antioxidant
being a secondary diarylamine of the formula R1-NH-R2 where R1 and
R2 each independently represent a substituted or unsubstituted
aryl group having from 6 to 46 carbon atoms and the second
antioxidant being a 2,2,4-trialkyl-1,2-dihydroquinoline or a
polymer thereof of the structure:
where n=1-1000 and R3 is hydrogen, alkyl, or alkoxy.
THE REFERENCES
Jones et al. (Jones) 2,647,824 Aug. 4, 1953
Rasberger et al. (Rasberger) 4,692,258 Sep. 8, 1987
Meier et al. (Meier) 4,965,006 Oct. 23, 1990
Evans 5,246,606 Sep. 21, 1993
THE REJECTION
Claims 1-5, 7, 8, 10-19, 21, 22 and 24-28 stand rejected
under 35 U.S.C. § 103 as being unpatentable over Jones taken with
Meier, Evans and Rasberger.
2
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