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:
Jan. 26, 1982
Filed:
May. 29, 1980
Applicant:
Inventors:
Martin Scharf, Kothen, DD;
Ulrich Meisel, Dessau, DD;
Assignee:
VEB Filmfabrik Wolfen, Wolfen, DD;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430510 ; 430512 ; 430518 ; 430537 ; 430941 ;
Abstract
The present invention is directed to a photographic material based upon silver halide emulsions comprising an emulsion layer containing a diffusible dye, and an antihalation layer containing a mordant for fixing the diffusible dye superimposed directly over the emulsion layer, the antihalation layer having its maximum degree of absorption in the same spectal range as the maximum degree of sensitivity of the emulsion layer.