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:
Jul. 15, 1980
Filed:
Mar. 06, 1978
Applicant:
Inventors:
Hendrik Schadenberg, Amsterdam, NL;
Corrie M Leenaars, Amsterdam, NL;
Aaldert J de Jong, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C07F / ;
U.S. Cl.
CPC ...
252 / ; 260958 ; 260963 ;
Abstract
Novel esters of dithiophosphoric acid and secondary alcohols having two beta quaternary carbon atoms, and salts of such esters suitable as additives in oil compositions are disclosed.