US3293441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image intensifier with ferroelectric layer and balanced impedances
Assignee: Individual
•
Filing: 1965-05-12
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Granted: 1966-12-20
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Expires: 1985-05-12
Abstract
No abstract record available.
Inventors
- 👤 Kazan Benjamin
- 👤 John S Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:16
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A LIGHT AMPLIFYING APPARATUS COMPRISING: CONTINUOUS LAYERS OF A PHOTOCONDUCTIVE MATERIAL, A FERROELECTRIC MATERIAL AND AN ELECTROLUMINESCENT MATERIAL IN A SANDWICH ARRANGEMENT WITH THE PHOTOCONDUCTIVE LAYER BEING AN OUTSIDE LAYER AND IN WHICH THE LAYERS ARE IN CONTACT WITH EACH OTHER THROUGHOUT THEIR FACE-TO-FACE SURFACES, THE PARAMETERS OF SAID LAYERS BEING SUCH THAT THE SUM OF THEIR DIRECT-CURRENT IMPEDANCES IS CONSIDERABLY GREATER THAN THE SUM OF THEIR ALTERNTING-CURRENT IMPEDANCES, SAID FERROLECTRIC LAYER BEING DOPED TO REDUCE ITS DIRECTCURRENT IMPEDANCE TO A MAGNITUDE THAT IS RESPECTIVELY OF THE SAME ORDER AS THE DIRECT-CURRENT IMPEDANCES OF THE PHOTOCONDUCTIVE AND ELECTROLUMINESCENT LAYERS; AND TRANSPARENT CONDUCTING LAYERS ON THE TOP AND BOTTOM SURFACES, RESPECTIVELY, OF SAID SANDWICH ARRANGEMENT.
Claim 2
Dependent Claim
114 words
A LIGHT AMPLIFYING APPARATUS COMPRISING: CONTINUOUS LAYERS OF A PHOTOCONDUCTIVE MATERIAL, A FERROELECTRIC MATERIAL AND AN ELECTROLUMINESCENT MATERIAL IN A SANDWICH ARRANGEMENT WITH THE PHOTOCONDUCTIVE LAYER BEING AN OUTSIDE LAYER AND IN WHICH THE LAYERS ARE IN CONTACT WITH EACH OTHER THROUGHOUT THEIR FACE-TO-FACE SURFACES, THE PARAMETERS OF SAID LAYERS BEING SUCH THAT THE SUM OF THEIR DIRECT-CURRENT IMPEDANCES IS CONSIDERABLY GREATER THAN THE SUM OF THEIR ALTERNTING-CURRENT IMPEDANCES, SAID FERROLECTRIC LAYER BEING DOPED TO REDUCE ITS DIRECTCURRENT IMPEDANCE TO A MAGNITUDE THAT IS RESPECTIVELY OF THE SAME ORDER AS THE DIRECT-CURRENT IMPEDANCES OF THE PHOTOCONDUCTIVE AND ELECTROLUMINESCENT LAYERS; AND TRANSPARENT CONDUCTING LAYERS ON THE TOP AND BOTTOM SURFACES, RESPECTIVELY, OF SAID SANDWICH ARRANGEMENT.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |