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.

Date of Patent:
Jan. 10, 1978

Filed:

Oct. 19, 1976
Applicant:
Inventors:

Peter Bergthaller, Cologne, DT;

Wolfgang Himmelmann, Leverkusen, DT;

Lothar Rosenhahn, Cologne, DT;

Assignee:

AGFA-Gevaert, A.G., Leverkusen, DT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
96111 ; 96 67 ; 96 7 / ; 96 77 ; 2601 / ; 260117 ; 106125 ; 427338 ; 526317 ;
Abstract

1-Sulphonyl-4-amino-pyridinium salts are used as quick acting hardeners for protein-containing layers, in particular gelatine layers, for photographic purposes.


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