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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 6140029 B1

PDFFull Text
Date of Patent:
Oct. 31, 2000

Filed:

Sep. 30, 1999

Color photographic element containing elemental silver and nitrogen

Applicant:
Inventors:

Bernard A Clark, Berkshire, GB;

Jane S Boff, Herts, GB;

Philip A Allway, Herts, GB;

Louis E Friedrich, Rochester, NY (US);

Stephen P Singer, Spencerport, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:

Kluegel; Arthur E.

Primary Examiner:

Richard L Schilling

Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430506 ; 430507 ; 430510 ; 430614 ; 430615 ;
Abstract

The invention provides a silver halide photographic element comprising a non-light sensitive layer containing elemental silver and a nitrogen heterocycle compound having a ClogP of at least 4.5, which compound comprises a ring system of one or more fused rings containing at least one --N--H bond, the ring system comprising a total of at least three nitrogen ring members and the associated bonds; provided that the compound does not contain an --SH group or >C.dbd.S group and does not react with an oxidized developer.

Find Patent Forward Citations

Clark, Bernard. (2000). Color photographic element containing elemental silver and nitrogen (U.S. Patent No. 6140029). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6140029

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

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