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:
Dec. 14, 1993
Filed:
Jul. 10, 1991
Applicant:
Inventors:
Erwin Hahn, Heidelberg, DE;
Guenter Hansen, Ludwigshafen, DE;
Karl-Heinz Etzbach, Frankenthal, DE;
Helmut Reichelt, Neustadt, DE;
Ernst Schefczik, Ludwigshafen, DE;
Sabine Greuttner, Mutterstadt, DE;
Helmut Degen, Frankenthal, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
534794 ; 534588 ; 534598 ; 534753 ; 534774 ; 8532 ; 8662 ; 8922 ;
Abstract
Thiopheneazo dye I which are chiefly useful as disperse dyes for dyeing textile material, in particular polyesters, have the formula ##STR1## where the substituents are as defined in the description.
Hahn, Erwin. (1993). Azo dyes with a2-aminothiophene dye azo component and a coupling (U.S. Patent No. 5270456). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5270456
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile