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. 04, 1991
Filed:
Mar. 05, 1990
Applicant:
Inventors:
John V Bullen, Feltham, GB;
David K Walters, Camberley, GB;
Assignee:
Ethyl Petroleum Additives, Limited, Bracknell, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 77 ;
Abstract
A friction reducing additive composition comprising a long chain succinimide derivative and a long chain amide has superior friction reducing properties, especially in wet brake systems for tractors and other vehicles.