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:
Nov. 30, 1993
Filed:
Oct. 30, 1992
Applicant:
Inventors:
Assignee:
Agfa Gevaert AG, Leverkusen, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430462 ; 430393 ; 430430 ; 430461 ;
Abstract
A bleaching bath for processing of a color photographic silver halide material which contains the ferric complex of alaninediacetic acid as the bleaching agent and in a dye-stabilizing amount a formaldehyde precursor of the formula ##STR1## wherein X and Y denote the residual atoms of a hetero aromatic 5- or 6-membered ring, yields color photographic images with excellent dye-stabilizing. In the atmosphere above the stabilizing bath no formaldehyde is detectable.