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:
Jan. 05, 1993
Filed:
Jun. 12, 1991
Applicant:
Inventors:
Martin Michna, Pulheim, DE;
Manfred Hoppe, Kuerten, DE;
Karl-Josef Herd, Odenthal-Holz, DE;
Hermann Henk, Cologne, DE;
Frank-Michael Stohr, Odenthal, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ;
U.S. Cl.
CPC ...
8524 ; 8527 ; 8543 ; 8549 ; 8568 ; 8917 ; 8918 ; 8924 ;
Abstract
Preparations of water-soluble reactive dyestuffs containing pyridine derivatives of the formula ##STR1## or salts of, in which the substituents have the meanings given in the description, are highly suitable for the dyeing of cellulose materials.