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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 5667946 B1

PDFFull Text
Date of Patent:
Sep. 16, 1997

Filed:

Apr. 30, 1996

Photographic material containing magenta dye forming coupler

Applicant:
Inventors:

Jane Sarah Boff, St. Albans, GB;

Bernard Arthur Clark, Maidenhead, GB;

Paul Louis Stanley, Harrow, GB;

Christina Mary Watts, Harold Weald, GB;

Stephen Paul Singer, Spencerport, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:

Kluegel; Arthur E.

Primary Examiner:

Lee C Wright

Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430386 ; 430387 ; 430554 ; 430555 ; 430549 ;
Abstract

The invention provides a light sensitive photographic silver halide emulsion layer having associated therewith a magenta coupler having formula I: ##STR1## wherein: R represents a ballasted monosubstituted amino group which enables the coupler to form, upon development with 4-amino-3-methyl-N-ethyl-N-(2-hydroxyethyl)aniline sulfate developing agent, a magenta dye having a wavelength of maximum absorbance of 545 nm or greater; and

Find Patent Forward Citations

Boff, Jane. (1997). Photographic material containing magenta dye forming coupler (U.S. Patent No. 5667946). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5667946

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

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