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. 03, 1991
Filed:
Dec. 21, 1990
Applicant:
Inventors:
Rudolf Binder, Maintal, DE;
Friedrich Schophoff, Frankfurt am Main, DE;
Klaus Hofmann, Frankfurt am Main, DE;
Assignee:
Cassella Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
8526 ; 8532 ; 8662 ; 8922 ; 534575 ;
Abstract
The present invention relates to the .beta.-modification of the dye of the formula I ##STR1## to a process for its preparation, to its use, and to a dye preparation containing it.