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:
May. 04, 1976
Filed:
Oct. 01, 1974
Applicant:
Inventors:
Herbert Koppe, Ingelheim am Rhein, DT;
Karl Zeile, Ingelheim am Rhein, DT;
Werner Kummer, Ingelheim am Rhein, DT;
Helmut Stahle, Ingelheim am Rhein, DT;
Peter Danneberg, Ingelheim am Rhein, DT;
Assignee:
Boehringer Ingelheim GmbH, Ingelheim am Rhein, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605707 ; 260254 ; 26050117 ; 26050119 ; 2605 / ; 424253 ; 424316 ; 424330 ;
Abstract
Compounds of the formula ##EQU1## wherein R is hydrogen or alkyl of 1 to 3 carbon atoms, and