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. 02, 1999
Filed:
Apr. 27, 1995
Applicant:
Inventors:
Michael William Crawley, Kingswood/Watford Herts, GB;
Andrew William Gibson, Welwyn Garden City/Herts, GB;
Paul Louis Stanley, Wealdstone Harrow/Middlesex, GB;
Hugh Martin Williamson, Hanwell/London, GB;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430558 ; 430543 ; 430955 ;
Abstract
Novel non-diffusible pyrazolo-�1,5-a! benzimidazole color couplers having an alkylene-, oxyalkylene- or arylene- thio coupling-off group, substituted with a carboxylic acid or dialkylamino group, have dye-forming and/or bleach-accelerating properties. The couplers are generally associated with a silver halide emulsion layer coated on a support to form a single color or multi-color photographic element.