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:
Feb. 11, 1986
Filed:
Oct. 12, 1984
Applicant:
Inventors:
Harold S Bruner, Jr, Hockessin, DE (US);
Michael B D'Amore, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560204 ; 502171 ; 502201 ; 502222 ; 502229 ; 502326 ;
Abstract
Deactivated cobalt catalyst from the carboxalkoxylation of butadiene is regenerated by contact with a strong acid ion exchange resin.
Bruner, Jr, Harold. (1986). Manufacture of butanedicarboxylic acid esters (U.S. Patent No. 4570016). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4570016
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile