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:
Jun. 25, 2013
Filed:
May. 18, 2006
Applicants:
Ian A. W. Bell, Abingdon, GB;
Robert W. Shaw, Abingdon, GB;
Inventors:
Ian A. W. Bell, Abingdon, GB;
Robert W. Shaw, Abingdon, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 159/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An internal combustion engine crankcase lubricating oil composition has a phosphorus content of not greater than 0.08 mass % and a metal detergent additive system comprising a calcium salicylate and a magnesium salicylate and having a mass ratio of magnesium atoms to calcium atoms of greater than one.