Photographic miniature transparency film product

Claim 1

A PHOTOGRAPHIC FILM UNIT ADAPTED TO BE EXPOSED AND PROCESSED IN A CAMERA WHICH INCLUDES PROCESSING MEANS COOPERATING WITH SAID FILM UNIT FOR EFFECTING A DIFFUSION TRANSFER METHOD OF FORMING AN IMAGE THEREWITHIN, SAID FILM UNIT COMPRISING A SUBSTANTIALLY RIGID MOUNT SUITABLE AS A SLIDE MOUNT FOR PROJECTION OF SAID IMAGE AND HAVING AN OPENING FORMED THEREIN FOR EXPOSURE AND VIEWING PURPOSES, A FILM COMPONENT INCLUDING IN SUPERIMPOSED RELATION AT LEAST ON IMAGE-RECEIVING SURFACE AND A PHOTOSENSITIVE MATERIAL COMPRISING AT LEAST ONE SILVER-HALIDE EMULSION SO MOUNTED IN SAID MOUNT AS TO BE COEXTENSIVE WITH AT LEAST THE AREA OF SAID OPENING, CONTAINER MEANS RELEASABLY CARRYING A PROCESSING LIQUID POSITIONED IN SAID FILM UNIT SO AS TO OVERLAP AN EDGE OF SAID FILM COMPONENT WHICH LIES ADJACENT TO A GIVEN SIDE OF SAID OPENING AND PERMIT RELEASE OF SAID LIQUID ACROSS A SURFACE OF SAID FILM COMPONENT, AND A COVER SHEET RELEASABLE ATTACHED TO SAID MOUNT ALONG AT LEAST A LEADING EDGE THEREOF AND SUPERIMPOSED WITH BOTH SAID FILM COMPNENET AND SAID LIQUID CONTAINER, SAID COVER SHEET INCLUDING AN OPAGUE PORTION COEXTENSIVE WITH AT LEAST SAID MOUNT OPENING WHICH PROVIDES BOTH A BARRIER RELATIVE TO THE LIGHT OF SAID EXPOSURE AND A BARRIER FOR CONFINING SAID PROCESSING LIQUID, WHEN RELEASED, TO THE VICINITY OF SAID FILM COMPONENT.