Patent US3217168A successfully refreshed from Google Patents.
US3217168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive solid-state image intensifier
Assignee: US Philips Corp
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Filing: 1961-12-14
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Granted: 1965-11-09
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Expires: 1981-12-14
Abstract
No abstract record available.
Inventors
- 👤 Kohashi Tadao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:13
CPC Classifications
H; H10; H10F; H10F55/00; H10F55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
APPARATUS COMPRISING A SOLID-STATE IMAGE INTENSIFIER; SAID INTENSIFIER INCLUDING A FIRST ELECTRODE, AN ELECTRIC-FIELD-RESPONSIVE LUMINESCENT LAYER OVER THE FIRST ELECTRODE, A RADIATION-RESPONSIVE PHOTOCONDUCTIVE LAYER OVER THE LUMINESCENT LAYER, A LAYER OF RADIATION-UNRESPONSIVE IMPEDANCE ELEMENTS OVER THE PHOTOCONDUCTIVE LAYER, A SECOND ELECTRODE OVER THE IMPEDANCE LAYER, AND A GRIDLIKE THIRD ELECTRODE EXTENDING BETWEEN THE LUMINESCENT LAYER AND THE IMPEDANCE LAYER AND CONTACTING THE PHOTOCONDUCTIVE LAYER; MEANS FOR MAINTAINING A VOLTAGE DIFFERENCE V2 BETWEEN THE FIRST AND SECOND ELECTRODES, MEANS FOR MAINTAINING A VOLTAGE DIFFERENCE V1 BETWEEN THE FIRST AND THIRD ELECTRODES, V1 AND V2 BEING DIFFERENT FROM ZERO AND FROM EACH OTHER, AND MEANS FOR VARYING THE DIFFERENCE OF V1 AND V2 FROM EACH OTHER.
Claim 2
Dependent Claim
114 words
APPARATUS COMPRISING A SOLID-STATE IMAGE INTENSIFIER; SAID INTENSIFIER INCLUDING A FIRST ELECTRODE, AN ELECTRIC-FIELD-RESPONSIVE LUMINESCENT LAYER OVER THE FIRST ELECTRODE, A RADIATION-RESPONSIVE PHOTOCONDUCTIVE LAYER OVER THE LUMINESCENT LAYER, A LAYER OF RADIATION-UNRESPONSIVE IMPEDANCE ELEMENTS OVER THE PHOTOCONDUCTIVE LAYER, A SECOND ELECTRODE OVER THE IMPEDANCE LAYER, AND A GRIDLIKE THIRD ELECTRODE EXTENDING BETWEEN THE LUMINESCENT LAYER AND THE IMPEDANCE LAYER AND CONTACTING THE PHOTOCONDUCTIVE LAYER; MEANS FOR MAINTAINING A VOLTAGE DIFFERENCE V2 BETWEEN THE FIRST AND SECOND ELECTRODES, MEANS FOR MAINTAINING A VOLTAGE DIFFERENCE V1 BETWEEN THE FIRST AND THIRD ELECTRODES, V1 AND V2 BEING DIFFERENT FROM ZERO AND FROM EACH OTHER, AND MEANS FOR VARYING THE DIFFERENCE OF V1 AND V2 FROM EACH OTHER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |