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:
Oct. 01, 1991
Filed:
Aug. 24, 1989
Applicant:
Inventors:
David Greenwood, Oldham, GB;
Nigel Hughes, Oldham, GB;
Ronald W Kenyon, Manchester, GB;
Suraj L Hindagolla, Corvallis, OR (US);
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09D / ;
U.S. Cl.
CPC ...
534829 ; 534573 ; 534728 ; 534836 ; 534887 ; 8524 ; 8641 ; 106 22 ;
Abstract
A dye which, in the free acid form, has the formula ##STR1## wherein W is COOH
Quick Actions:
Greenwood, David. (1991). Anionic dye having high water-fastness (U.S. Patent No. 5053495). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5053495
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile