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:
Nov. 20, 1979
Filed:
Feb. 28, 1973
Applicant:
Inventors:
El Ahmadi Heiba, Princeton, NJ (US);
Ralph M Dessau, Highland Park, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603436 ; 2603 / ;
Abstract
Gamma-butyrolactones are formed by reacting an olefin with a compound containing a carboxylate moiety having at least one hydrogen atom on the alpha carbon atom in the presence of an ion of manganese, cerium, or vanadium, the ion being in a valency state higher than its lowest valency state.
Heiba, El. (1979). Preparation of gamma-butyrolactones (U.S. Patent No. 4175089). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4175089
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile