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:
Sep. 02, 1986
Filed:
Mar. 14, 1984
Applicant:
Inventors:
Reinhard Kemper, Heidelberg, DE;
Egon Liedek, Esslingen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
534760 ; 106 23 ; 1062 / ; 1063 / ; 523460 ; 524190 ; 525376 ; 534575 ; 534581 ; 534583 ; 534887 ;
Abstract
Compounds of the general formula I ##STR1## where R is hydrogen or C.sub.1 -C.sub.6 -alkyl and X is chlorine or bromine, with the proviso that X is only bromine when R is H, possess pigment properties and are distinguished by high color strength, brilliance and very good fastness properties.
Kemper, Reinhard. (1986). Disazo dyes derived from 3,3'-dihalo-5,5'-dichlorobenzidine (U.S. Patent No. 4609726). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4609726
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile