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:
Sep. 06, 1977
Filed:
May. 27, 1976
Applicant:
Inventors:
Marcel Robert Fierens, Duffel, BE;
Renaat Frans Heylen, Deurne, BE;
Assignee:
AGFA-GEVAERT N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
96 6 / ;
Abstract
A hardening fiber composition for use in the processing of photographic silver halide elements is described which contains a 1-hydroxy-alkylidene diphosphonic acid the alkylidene group of which contains from 2 to 5 C-atoms.