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:
Mar. 24, 1981
Filed:
Nov. 20, 1979
Applicant:
Inventors:
Charles Pavan, Nogent-sur-Marne, FR;
Jacques Bulidon, Paris, FR;
Assignee:
Roussel Uclaf, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07B / ;
U.S. Cl.
CPC ...
26050117 ; 562401 ; 562506 ;
Abstract
A process for the resolution of DL-cis chrysanthemic acid or DL-trans chrysanthemic acid with L or D N-methyl-ephedrine to form the corresponding salt and acid hydrolyzing the same which resolved acids are intermediates for preparing esters having a remarkable insecticidal activity.
Pavan, Charles. (1981). Resolution process using l or d n-methyl-ephedrine (U.S. Patent No. 4257976). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4257976
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile