The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2000
Filed:
Jul. 29, 1998
Applicant:
Inventors:
Robert Robson, Oxfordshire, GB;
Trevor Anthony Brettell, Oxfordshire, GB;
Assignee:
Exxon Chemical Patents, Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
508371 ; 508368 ; 508372 ; 508373 ; 508376 ; 508294 ;
Abstract
A lubricating oil composition for internal combustion engines comprises: (A) a major amount of a basestock of lubricating viscosity containing from greater than 35 to less than 70 mass % of one or more PAO's, the balance preferably being one or more Group I basestocks as defined in API 1509; and (B) two or more additive components such as an ashless dispersant and a metal detergent.