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. 18, 1990
Filed:
Jun. 21, 1989
Applicant:
Inventors:
Assignee:
Heumann Pharma GmbH & Co., Nuremberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 47 ; 562456 ; 564343 ; 564202 ; 564211 ; 548486 ;
Abstract
A new process for the preparation of 2,6-dichlorodiphenylamine derivatives is described, which process provides the desired active compound in a high yield and with a very high degree of purity by a technically simple and realizable procedure.