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. 22, 2000
Filed:
Mar. 18, 1999
Applicant:
Inventors:
Andrew Paul Shawcross, Manchester, GB;
Gavin Wright, Bury, GB;
Barry Huston Meyrick, Manchester, GB;
Mark Holbrook, Bury, GB;
Assignee:
Zeneca Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09D / ;
U.S. Cl.
CPC ...
534685 ; 106 3152 ; 523161 ; 524190 ; 347100 ; 8639 ;
Abstract
An ink comprising water, a water-dissipatable polymer and one or more dyes having a benzene ring carrying a hydroxy group at each of the 1-, 3- and 5-positions and an azo group at each of the 2-, 4- and 6-positions or a tautomer thereof. Also claimed are certain dyes, compositions printer cartridges and ink jet printers.