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:
Oct. 10, 1978
Filed:
Aug. 12, 1976
Applicant:
Inventors:
Herbert Hugl, Leverkusen, DE;
Hans-Gunter Otten, Leverkusen, DE;
Richard Sommer, Leverkusen, DE;
Gerhard Wolfrum, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260206 ; 260152 ; 260156 ; 260207 ;
Abstract
Dyestuffs, which in the form of the free acid of the formula ##STR1## wherein R.sub.1 denotes hydrogen, nitro, cyano, SO.sub.2 --R.sub.7, CONR.sub.8 R.sub.9, SO.sub.2 NR.sub.8 R.sub.9, SO.sub.2 OR.sub.10, COOR.sub.10, SO.sub.2 --NHSO.sub.2 --R.sub.11, sulpho or alkyl,