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:
Jun. 24, 1980
Filed:
Oct. 02, 1978
Applicant:
Inventors:
Michael D McCreary, Rochester, NY (US);
William C Farley, Rochester, NY (US);
Wayne F Erickson, Webster, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430218 ; 430239 ; 450467 ;
Abstract
Photographic elements, film units, processes and alkaline processing compositions are described wherein certain subsituted 1-phenyl-3-pyrazolidinones are employed as electron transfer agents in color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: R is hydrogen or a hydrolyzable moiety;
McCreary, Michael. (1980). Substituted 1-phenyl-3-pyrazolidinone electron transfer agents (U.S. Patent No. 4209580). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4209580
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile