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.:

US 6841344 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 11, 2005

Filed:

Dec. 04, 2002
Applicants:

Danuta Gibson, Watford, GB;

David Clarke, Watford, GB;

Christopher J. Winscom, Pinner, GB;

Inventors:

Danuta Gibson, Watford, GB;

David Clarke, Watford, GB;

Christopher J. Winscom, Pinner, GB;

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C 108 ; G03C 726 ; G03C 732 ;
U.S. Cl.
CPC ...
Abstract

The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating hydrogen bond donating and hydrogen bond accepting compound and at least one pyrazole fused ring derivative coupler. The combination provides improved colour reproduction.


Find Patent Forward Citations

Gibson, Danuta. (2005). Photographic elements containing a de-aggregating compound and dye-forming coupler (U.S. Patent No. 6841344). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6841344

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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