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. 07, 1983
Filed:
Sep. 02, 1980
Applicant:
Inventors:
Assignee:
Imperial Oil Limited, Toronto, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585-1 ; 585 25 ; 208 19 ; 208 22 ; 208 23 ; 208 44 ;
Abstract
A traction fluid having a lubricant basestock comprising hydrogenated coal tar containing a saturated fraction having a major portion made up of multiring components of at least three rings and an aromatic fraction which comprises at least 12% by weight of said fluid and contains at least 50% by volume of multiring components.
Henderson, Harry. (1983). Traction fluid lubricants derived from coal tar (U.S. Patent No. 4387256). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4387256
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile