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:
Mar. 26, 1985
Filed:
Sep. 29, 1982
Applicant:
Inventors:
Rolf S Gabrielsen, Webster, NY (US);
Patricia A Graham, Williamson, NY (US);
James E Klijanowicz, Pittsford, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544348 ;
Abstract
A color-forming sulfonamidodiphenylamine dye precursor has sulfonamido groups in the ortho position and para position in relation to the --NH-- moiety of the sulfonamidodiphenylamine and, in oxidized form, intramolecularly reacts to produce a sulfonamido-substituted phenazine dye. Such color-forming sulfonamidodiphenylamine dye precursors are useful to produce a dye image by cross-oxidation in an imaging material.