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. 04, 1991
Filed:
May. 23, 1990
Applicant:
Inventors:
Hans Vetter, Cologne, DE;
Heinrich Odenwalder, Leverkusen, DE;
Peter Bergthaller, Gladbach, DE;
Thomas Kruger, Leverkusen, DE;
Assignee:
Agfa Gevaert Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430544 ; 430957 ;
Abstract
Highly active silver halide development inhibitors are released from DIR couplers corresponding to formula I during color development. Where DIR couplers are used in color photographic silver halide materials, high edge effects and high inter-image effects are obtained.
Quick Actions:
Vetter, Hans. (1991). Color photographic recording material containing a dir coupler (U.S. Patent No. 5021331). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5021331
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