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
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:46
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.
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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 |