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:
Feb. 09, 1999
Filed:
Oct. 08, 1997
Applicant:
Inventor:
Jacques Roussilhe, Virey le Grand, FR;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430399 ; 430398 ;
Abstract
The present invention concerns a method of replenishing an ascorbic acid developer used for developing silver halide photographic products. The method of the invention comprises the treatment of the developer by means of a resin having a greater selectivity for bromide ions than for carbonate ions and the replenishment of this developer by means of a solution, the concentration of the main components of which is predetermined in accordance with the quantity of developed silver. This invention simplifies the replenishment of ascorbic acid developers.