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:
May. 08, 1990
Filed:
Jul. 05, 1988
Applicant:
Inventor:
Karl Frank, Leverkusen, DE;
Assignee:
AGFA Gevaert AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430430 ; 430460 ; 430461 ; 430462 ; 430393 ; 252 94 ; 252102 ;
Abstract
The one-part aqueous bleaching bath concentrate containing an ammonium iron (III) complex salt concentration of at least 0.4 mol per liter, an ammonium bromide concentration of from 1.5 to 3 mol per liter, an ammonium nitrate concentration of from 0.25 to 1 mol per liter and a pH below 3 is stable in storage.