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:
Nov. 08, 1977
Filed:
Aug. 26, 1976
Applicant:
Inventors:
Julius Berger, Passaic, NJ (US);
Karen Emalyn Reichelt, Belleville, NJ (US);
Willy Schuep, Birsfelden, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 195 12 ; 195109 ; 424256 ;
Abstract
Novel 1-propyl-3-methyl-azuleno[2,3-c]pyridine diones useful as coloring agents for foodstuffs, vitamins and pharmaceuticals and their method of preparation from Streptomyces Sp. X-14077 by fermentation.