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.:

US 4242435 B1

Date of Patent:

Dec. 30, 1980

Filed:

Feb. 09, 1979

Photographic dye diffusion transfer process

Applicant:

Inventors:

Walter Puschel, Leverkusen, DE;

Hans Vetter, Cologne, DE;

Paul Marx, Leverkusen, DE;

Assignee:

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

Attorney:

Connolly & Hutz

Primary Examiner:

Richard L Schilling

Int. Cl.

CPC ...

G03C / ; G03C / ; G03C / ; G03C / ;

U.S. Cl.

CPC ...

430242 ; 430222 ; 430223 ; 430241 ; 430562 ;

Abstract

For the production of cyan and magenta images by the dye diffusion transfer process dye-providing compounds of the formula I are suitable ##STR1## in which A=an oxydizable carrier residue containing a diffusion-preventing radical;

Find Patent Forward Citations

Puschel, Walter. (1980). Photographic dye diffusion transfer process (U.S. Patent No. 4242435). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4242435

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