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. 19, 1991
Filed:
Jul. 10, 1989
Applicant:
Inventor:
Jack E Baldwin, Hinksey Hill, GB;
Assignee:
Lilly Industries Limited, Hampshire, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540215 ; 540222 ; 540221 ;
Abstract
There is described a process for producing exomethylene cepham intermediates useful in cephalosporin chemistry. The process comprises the preparation of a compound of the formula ##STR1## in which R.sup.1 is an amino group, a protected amino group, an acylamino group or a diacylamino group,
Baldwin, Jack. (1991). Process for preparing cepham intermediates (U.S. Patent No. 5066797). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5066797
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile