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:
Feb. 20, 1979
Filed:
Apr. 03, 1975
Applicant:
Inventors:
Assignee:
Fidelity Union Trust Company, Executive Trustee under the Sandoz Trust, Newark, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
260156 ; 546296 ; 546288 ; 546287 ; 546256 ; 546261 ; 546257 ; 546258 ; 546271 ; 546284 ; 546283 ; 546193 ; 546194 ; 546280 ; 544364 ; 544360 ; 544365 ; 544131 ;
Abstract
Dyes of the formula ##STR1## wherein R.sub.1 is a carbocyclic or heterocyclic diazo component radical,
Burkhard, Hermann. (1979). Azo dyes having a 6-hydroxy-pyridone-2 coupling component radical having (U.S. Patent No. 4140684). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4140684
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile