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:
Feb. 22, 1983
Filed:
Jul. 13, 1981
Applicant:
Inventors:
Herbert Mollet, Tentlingen, CH;
Dieter Wyrsch, Marly, CH;
Assignee:
Ciba-Geigy Ltd., Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03C / ;
U.S. Cl.
CPC ...
430 15 ; 430 17 ; 430390 ; 430391 ; 430505 ; 430509 ; 430559 ; 430565 ;
Abstract
Negative color images are produced by the silver dye bleach process, by exposure of a photographic silver dye bleach material, silver developing, dye bleaching, silver bleaching and fixing, the silver bleaching being optionally carried out simultaneously with the dye bleaching and/or the fixing, in a single treatment bath. The photographic material consists of a support with at least one layer assembly of three layers in each case, each layer assembly containing, as viewed from the same side as the incident light: