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:
Apr. 06, 1993
Filed:
Sep. 27, 1990
Applicant:
Inventors:
Hans-Joachim Schumann, Cologne, DE;
Erich Wolff, Solingen, DE;
Assignee:
Agfa Gevaert Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430505 ; 430552 ; 430553 ;
Abstract
A color photographic material containing color couplers which yield heat-stable dyes. A color photographic recording material containing cyan couplers which, during chromogenic development, yield cyan dyes having parameters a and b such that