Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic sulfur compound – wherein the sulfur is single bonded...
Reexamination Certificate
2002-10-15
2008-08-05
Caldarola, Glenn (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic sulfur compound, wherein the sulfur is single bonded...
C508S545000, C508S483000
Reexamination Certificate
active
07407919
ABSTRACT:
A composition for lubricating an internal combustion engine includes an oil of lubricating viscosity; a predominantly linear alkylbenzenesulfonate detergent having a metal ratio of at least 8; and a combination of hindered phenolic ester antioxidant and aromatic amine antioxidant. The amount of any phenate detergent is less than 15% by weight of the total amount of detergents.
REFERENCES:
patent: 3644277 (1972-02-01), Gilles
patent: 4326972 (1982-04-01), Chamberlin, III
patent: 4767551 (1988-08-01), Hunt et al.
patent: 4938881 (1990-07-01), Ripple et al.
patent: 4952328 (1990-08-01), Davis et al.
patent: 5422022 (1995-06-01), Chamberlin, III
patent: 5439605 (1995-08-01), Khorramian
patent: 5490945 (1996-02-01), Smith et al.
patent: 5516441 (1996-05-01), Denis
patent: 5652201 (1997-07-01), Papay et al.
patent: 5674820 (1997-10-01), Manka et al.
patent: 5792732 (1998-08-01), Jao et al.
patent: 6187722 (2001-02-01), Rowland et al.
patent: 2001/0044387 (2001-11-01), Inoue et al.
patent: 2002/0006878 (2002-01-01), Abraham et al.
patent: 0 881 277 (1998-12-01), None
patent: 1 016 706 (1999-12-01), None
patent: 1 041 135 (2000-10-01), None
patent: 1 059 301 (2000-12-01), None
patent: 1059301 (2000-12-01), None
patent: 1 227 145 (2002-07-01), None
patent: WO 0144419 (2001-06-01), None
patent: WO 01/74978 (2001-10-01), None
Notice of Opposition dated Jan. 5, 2006.
Letter by Opponent dated Jan. 9, 2006.
“Irganox® L 135”, printed Jul. 1997, by Ciba Specialty Chemicals.
“Ethyl Corporation Material Safety Data Sheet, HiTEC 611 Performance Additive”, dated Apr. 6, 1998.
“Naugalube Lubricant additives, Naugalube 438® L”, dated 1997.
“Naugalube® 438L”, dated Feb. 1992.
Dohner Brent R.
Kelley Jack C.
Wilk Melody A.
Zalar Frank V.
Caldarola Glenn
Goloboy Jim
Hilker Christopher D.
Shold David M.
The Lubrizol Corporation
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