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:
Dec. 16, 1997
Filed:
Oct. 25, 1996
Applicant:
Inventors:
Takeo Hokama, Mountain View, CA (US);
Ian S Cloudsdale, Boulder Creek, CA (US);
Werner Langer, Rheinfelden, DE;
Hermann Schneider, Heitersheim, DE;
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544319 ; 544335 ; 544334 ; 544333 ; 544326 ; 544327 ; 544328 ; 544329 ; 544242 ;
Abstract
A process for preparation of substituted phthalides, heterocyclic phthalides and derivatives thereof by reacting an aromatic carboxylic acid mono- or di-anion with a reactive derivative of a pyrimidine carboxylic acid.