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.:

US 7956018 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 07, 2011

Filed:

Dec. 10, 2007
Applicant:

James A. Mcgeehan, San Rafael, CA (US);

Inventor:

James A. McGeehan, San Rafael, CA (US);

Assignee:

Chevron U.S.A. Inc., San Ramon, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 105/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lubricant composition includes a base oil having a consecutive number of carbon atoms and a viscosity index greater than a Viscosity Index Factor calculated by the following equation:28×(Kinematic Viscosity at 100° C.)+95.The lubricant composition also includes greater than 15 weight % detergent inhibitor (DI) additive package. The lubricant composition has a dynamic viscosity at −35° C. of less than 6200 mPa·s, a Mini-Rotary Viscosity (MRV) at −40° C. of less than 60,000 mPa·s, and a Cold Cranking Simulator (CCS) Viscosity at −35° C. of less than 6200 mPa·s.


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McGeehan, James. (2011). Lubricant composition (U.S. Patent No. 7956018). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7956018

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