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:
Sep. 13, 1983
Filed:
Aug. 14, 1981
Applicant:
Inventors:
Hansjakob Fah, Ormalingen, CH;
Alfred Grieder, Bockten, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546345 ; 546318 ; 203 58 ;
Abstract
Production of 2-chloropyridines of the formula I ##STR1## wherein R independently of one another is C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenalkyl, halogen or carboxyl and