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. 26, 1979
Filed:
May. 13, 1977
Applicant:
Inventor:
Stjepan Kukolja, Indianapolis, IN (US);
Assignee:
Eli Lilly and Company, Indianapolis, IN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2603 / ; 26037637 ; 2603 / ; 2603 / ; 546208 ; 546187 ; 546209 ; 546210 ;
Abstract
Penicillin sulfoxide derived azetidinone sulfinyl chlorides and related sulfinic acid derivatives are cyclized to 3-methylenecephams by reaction with Friedel-Crafts catalysts or metathetic cation forming agents.
Kukolja, Stjepan. (1979). Method of preparation of 3-methylenecephams (U.S. Patent No. 4159266). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4159266
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile