Virginia M Moszkowicz

US Patent:

57179727, Feb 10, 1998

Filed:

Dec 19, 1996

Appl. No.:

8/774939

Inventors:

David L. Patton - Webster NY
Virginia M. Moszkowicz - Honeoye Falls NY
William G. Hoyt - Churchville NY
Edgar G. Earnhart - Hilton NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03B 1726

US Classification:

396515

Abstract:

A cartridge (10) of photographic medium includes a housing (14-24) having an interior volume (15); an exit slit (26) from the interior volume to an exterior of the housing; a photographic medium element (12) enclosed within the interior volume; an indicator (36-44) supported by one of the housing and the medium element, the indicator being responsive to a liquid reagent to change color and provide a visible indication of a status of the medium element; a source (46-52; 72-76; 90; 112) of the liquid reagent supported by the one of the housing and the medium element; and means (32, 34, 54-62; 778-86; 94-100; 22, 26, 28, 110) for causing flow of the reagent to the indicator upon movement of the medium element through the exit slit, whereby the indicator will change color and indicate the status. An indicator apparatus for mounting on a cartridge and a photographic medium supporting an indicator and source of reagent also are disclosed.