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:
Sep. 27, 1977
Filed:
Mar. 15, 1976
Applicant:
Inventors:
John Scotchford Elliott, Beaconsfield, EN;
Bryan Terence Davis, Wokingham, EN;
Richard Martin Howlett, Wokingham, EN;
Assignee:
Edwin Cooper and Company Limited, Bracknell, EN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 475 ;
Abstract
Bis-substituted phenols bridged through a carbon atom of an aliphatic carboxylic amide or ester are effective ashless dispersants for lubricating oil. Preferably, the phenols are substituted with a high molecular weight poly-alpha-olefin group.
Elliott, John. (1977). Lubricating oil containing alkanoic amide or ester-bridged hydrocarbyl (U.S. Patent No. 4051049). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4051049
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile