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US2944894A Expired / Lapsed US ⏱️ 0.0 years remaining

Photographic processes utilizing screen members

Assignee: Polaroid Corp
•
Filing: 1955-09-28
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Granted: 1960-07-12
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Expires: 1975-09-28
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Abstract

No abstract record available.

Inventors

  • 👤 Edwin H Land

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 14:48
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/30

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 210 words
IN A PROCESS FOR FORMING PHOTOGRAPHS UTILIZING A MULTILAYER STRUCTURE COMPRISING A SCREEN HAVING AN ARRAY OF MINUTE OPTICAL ELEMENTS, A PHOTOSENSITIVE LAYER, INCLUDING A PHOTOSENSITIVE MATERIAL CAPABLE OF HAVING A DEVELOPABLE IMAGE FORMED THEREIN BY EXPOSURE, SUPERPOSED WITH AND CARRIED BY SAID SCREEN, AND AN IMAGERECEIVING LAYER SUPERPOSED WITH AND CARRIED BY SAID SCREEN AT A LOCATION ON THE SAME SIDE OF SAID SCREEN AS SAID PHOTOSENSITIVE LAYER, THE STEPS COMPRISING PHOTOEXPOSING SAID PHOTOSENSITIVE LAYER WITH LIGHT DIRECTED THROUGH SAID SCREEN AND FORMING IN SAID PHOTOSENSITIVE LAYER A PLURALITY OF LATENT IMAGES THE DISTRIBUTION OF WHICH IS DETERMINED BY THE ARRANGEMENT OF SAID MINUTE OPTICAL ELEMENTS, PERMEATING A PROCESSING LIQUID INWARDLY INTO SAID PHOTOSENSITIVE LAYER ONLY THROUGH THE OUTER SURFACE OF SAID MULTILAYER STRUCTURE FURTHEST FROM SAID SCREEN, BY MEANS OF SAID PROCESSING LIQUID DEVELOPING SAID LATENT IMAGES IN SAID PHOTOSENSITIVE LAYER, FORMING AN IMAGEWISE DISTRIBUTION OF TRANSFERABLE IMAGE-FORMING AN IMAGEWISE DISTRIBUFERRING SAID IMAGE-FORMING SUBSTANCES TO SAID IMAGERECEIVING LAYER TO FORM VISIBLE IMAGES OF SAID LATENT IMAGES IN SAID IMAGE-RECEIVING LAYER, RETAINING SAID PHOTOSENSITIVE LAYER IN FIXED RELATION TO SAID SCREEN DURING EXPOSURE AND FORMATION OF SAID VISIBLE IMAGES, AND RETAINING SAID IMAGE-RECEIVING LAYER IN PERMANENT FIXED RELATION TO SAID SCREEN DURING AND AFTER FORMATION OF SAID VISIBLE IMAGES.
Claim 2
Dependent Claim 210 words
IN A PROCESS FOR FORMING PHOTOGRAPHS UTILIZING A MULTILAYER STRUCTURE COMPRISING A SCREEN HAVING AN ARRAY OF MINUTE OPTICAL ELEMENTS, A PHOTOSENSITIVE LAYER, INCLUDING A PHOTOSENSITIVE MATERIAL CAPABLE OF HAVING A DEVELOPABLE IMAGE FORMED THEREIN BY EXPOSURE, SUPERPOSED WITH AND CARRIED BY SAID SCREEN, AND AN IMAGERECEIVING LAYER SUPERPOSED WITH AND CARRIED BY SAID SCREEN AT A LOCATION ON THE SAME SIDE OF SAID SCREEN AS SAID PHOTOSENSITIVE LAYER, THE STEPS COMPRISING PHOTOEXPOSING SAID PHOTOSENSITIVE LAYER WITH LIGHT DIRECTED THROUGH SAID SCREEN AND FORMING IN SAID PHOTOSENSITIVE LAYER A PLURALITY OF LATENT IMAGES THE DISTRIBUTION OF WHICH IS DETERMINED BY THE ARRANGEMENT OF SAID MINUTE OPTICAL ELEMENTS, PERMEATING A PROCESSING LIQUID INWARDLY INTO SAID PHOTOSENSITIVE LAYER ONLY THROUGH THE OUTER SURFACE OF SAID MULTILAYER STRUCTURE FURTHEST FROM SAID SCREEN, BY MEANS OF SAID PROCESSING LIQUID DEVELOPING SAID LATENT IMAGES IN SAID PHOTOSENSITIVE LAYER, FORMING AN IMAGEWISE DISTRIBUTION OF TRANSFERABLE IMAGE-FORMING AN IMAGEWISE DISTRIBUFERRING SAID IMAGE-FORMING SUBSTANCES TO SAID IMAGERECEIVING LAYER TO FORM VISIBLE IMAGES OF SAID LATENT IMAGES IN SAID IMAGE-RECEIVING LAYER, RETAINING SAID PHOTOSENSITIVE LAYER IN FIXED RELATION TO SAID SCREEN DURING EXPOSURE AND FORMATION OF SAID VISIBLE IMAGES, AND RETAINING SAID IMAGE-RECEIVING LAYER IN PERMANENT FIXED RELATION TO SAID SCREEN DURING AND AFTER FORMATION OF SAID VISIBLE IMAGES.

References Cited (Backward Citations)

US2208754A Cited
US2158174A Cited
NL59365C Cited
US2665986A Cited
US2673800A Cited
US2614926A Cited
US2563342A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-07-12 1964-01-11 1964-07-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-07-12 1968-01-11 1968-07-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-07-12 1972-01-11 1972-07-12 $7700.00 Window Closed / Lapsed

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