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:
Oct. 05, 1993
Filed:
Jun. 28, 1991
William J Begley, Webster, NY (US);
Teh-hsuan Chen, Fairport, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A photographic silver halide material and process comprises at least one image dye-forming coupler and at least one coupler (A) represented by the formula SOL-COUP-LINK-PUG wherein SOL is a water solubilizing amide group, COUP is a naphtholic coupler moiety that, upon reaction with oxidized developer is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic material during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing; and wherein LINK is a carbamate linking group comprising a photographic ballast group on the nitrogen atom of the carbamate group. Such a photographic silver halide material enables formation of improved images.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile