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:
Jul. 25, 1989
Filed:
Mar. 10, 1988
Applicant:
Inventor:
Serge Ratton, La Verpilliere, FR;
Assignee:
Rhone-Poulenc Specialites Chimiques, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560181 ;
Abstract
Process for preparing alkyl alkoxyalkylidenemalonate. An alkyl malonate is condensed with an orthoester in the presence of a carboxylic acid or its anhydride and a metal compound of the group formed by Cd, Hg, Bi, Mg.