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:
Feb. 02, 1982
Filed:
Feb. 23, 1981
Applicant:
Inventors:
Gerhard Walther, Bingen, DE;
Claus S Schneider, Ingelheim, DE;
Karl-Heinz Weber, Gau-Algesheim, DE;
Armin Fugner, Gau-Algesheim, DE;
Assignee:
Boehringer Ingelheim KG, Ingelheim am Rhein, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
424 45 ; 42424851 ; 42424857 ; 42424858 ; 4242484 ; 424267 ; 4242 / ; 2602433 ; 2602444 ; 2602456 ;
Abstract
This invention relates to a compound of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, which may be the same or different, each represent a hydrogen or halogen atom or an alkyl or alkoxy group of from 1 to 6 carbon atoms;