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:
Oct. 03, 1978
Filed:
Mar. 15, 1977
Applicant:
Inventors:
Bernhard Piller, Marly-le-Petit, CH;
John Lenoir, Marly-le-Petit, CH;
Alfred Froehlich, Marly-le-Grand, CH;
Thomas Stauner, Marly-le-Grand, CH;
Paul Tschopp, Marly, CH;
Assignee:
Ciba-Geigy AG, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
96 99 ; 96-16 ; 96 20 ; 96 53 ; 96 67 ; 96 74 ; 96 89 ; 96 96 ; 9610 / ; 260174 ; 260175 ; 260178 ; 260184 ; 260185 ;
Abstract
The invention is directed essentially to photographic material containing, on a carrier, a layer with azo dyestuffs of the formula ##STR1## wherein A, B, X and Y are certain substituents, in a second main aspect azo dyestuffs of the formula ##STR2## wherein B' represents certain substituents and in a third main aspect azo deystuffs of the formula