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:
Jun. 20, 1978
Filed:
Dec. 07, 1976
Applicant:
Inventors:
Erich Wolff, Leverkusen, DT;
Dieter Lowski, Bergheim, Erft, DT;
Assignee:
AGFA-Gevaert AG, , DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
96 77 ; 96 562 ; 96 563 ; 96 566 ; 96100 ;
Abstract
.alpha.-Acylacetanilide yellow-forming couplers having a cyclic 5- or 6-membered sulfonamide group attached through its nitrogen atom to the phenyl group of the anilide portion of the molecule provide dyes of better light stability. The couplers include both 2-equivalent and 4-equivalent couplers.
Wolff, Erich. (1978). Photographic material comprising cyclic sulfonamide substituted yellow (U.S. Patent No. 4095983). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4095983
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile