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:
Mar. 21, 1978
Filed:
Mar. 16, 1976
Applicant:
Inventors:
Walter Kunstmann, Neuenhain, Taunus, DT;
Wolfgang Rieper, Frankfurt am Main, DT;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260157 ; 260208 ; 1062 / ;
Abstract
Monoazo compounds obtained by diazotising meta- or para-acylamino anilines and coupling on acetoacetylamino benzimidazolones are pigments of excellent fastness properties.