US3556787A
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US
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Photosensitive element including electron conducting layer,electron sensitive layer and photoconductive layer
Assignee: EUGENE C LETTER
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Filing: 1968-11-12
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Granted: 1971-01-19
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Expires: 1988-11-12
Abstract
Abstract A PHOTOELECTRIC ELEMENT FOR RECORDING INFORMATION HAVING THREE SOLID LAYERS SUPERIMPOSED IN CONTIGUOUS RELATION INCLUDING AN ELECTRON CONDUCTING LAYER, AN ELECTRON SENSITIVE LAYER AND A PHOTOCONDUCTIVE LAYER. THE PHOTOELECTRIC ELEMENT IS EXPOSED TO RADIATION TO CHANGE THE CONDUCTIVITY OF THE PHOTOCONDUCTIVE LAYER IN ACORDANE TO A DESIRED PATTERN AND IS SUBSEQUENTLY EXPOSED TO AN ELECTRON BEAM TO PRODUCE COLORING IN THE ELECTRON SENSITIVE FILM IN ACCORDANCE WITH THE PATTERN OF RADIATION RECEIVED.
Inventors
- 👤 Eugene C Letter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/705; G03G; G03G17/00; G03G17/02; G03G5/00; G03G5/02; G03G5/04; G03G5/153; Y; Y10; Y10S; Y10S148/00; Y10S148/064; Y10S148/072; Y10S430/00; Y10S430/143
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |