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:
Apr. 01, 1997
Filed:
Mar. 11, 1996
Applicant:
Inventor:
Stephen J Cook, North Humberside, GB;
Assignee:
BP Chemicals (Additives) Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
508239 ;
Abstract
A lubricating oil composition suitable for use in low- or medium-speed diesel engines comprising a fuel oil with a residual oil content characterised in that the lubricating oil composition further comprises a 'black paint' reducing amount of the product obtained by the reaction at elevated temperature of a hydrocarbyl-substituted succinic anhydride with either serine or an aminosalicylic acid.