US3084262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent apparatus and image panel
Assignee: Hazeltine Research Inc
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Filing: 1957-04-03
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Granted: 1963-04-02
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Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 Tomlinson Terence Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:09
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
ELECTROLUMINESCENT APPARATUS COMPRISING: CONTIGUOUS REGIONS OF DIFFERENT MATERIALS POSITIONED ADJACENT ONE ANOTHER IN THE FOLLOWING ORDER-A FIRST REGION OF CONDUCTIVE MATERIAL, A REGION OF PHOTO-IMPEDANCE MATERIAL, A SECOND REGION OF CONDUCTIVE MATERIAL, A REGION OF ELECTROLUMINESCENT MATERIAL, AND A THIRD REGION OF CONDUCTIVE MATERIAL; MEANS FOR SUPPLYING AN ENERGIZING VOLTAGE; MEANS CONNECTING THE FIRST AND THIRD CONDUCTIVE REGIONS TO ONE TERMINAL OF THE VOLTAGE-SUPPLY MEANS; AND MEANS CONNECTING THE SECOND CONDUCTIVE REGION TO ANOTHER TERMINAL OF THE VOLTAGE-SUPPLY MEANS; AT LEAST ONE OF SAID CONNECTING MEANS INCLUDING SERIES IMPEDANCE MEANS FOR CAUSING SAID ELECTROLUMINESCENT MATERIAL TO HAVE A MAXIMUM BRIGHTNESS WHEN NO LIGHT IMPINGES ON SAID PHOTOIMPEDANCE MATERIAL AND LESSER BRIGHTNESS INVERSELY PROPORTIONAL TO ANY LIGHT IMPINGING ON SAID PHOTO-IMPEDANCE MATERIAL.
Claim 2
Dependent Claim
121 words
ELECTROLUMINESCENT APPARATUS COMPRISING: CONTIGUOUS REGIONS OF DIFFERENT MATERIALS POSITIONED ADJACENT ONE ANOTHER IN THE FOLLOWING ORDER-A FIRST REGION OF CONDUCTIVE MATERIAL, A REGION OF PHOTO-IMPEDANCE MATERIAL, A SECOND REGION OF CONDUCTIVE MATERIAL, A REGION OF ELECTROLUMINESCENT MATERIAL, AND A THIRD REGION OF CONDUCTIVE MATERIAL; MEANS FOR SUPPLYING AN ENERGIZING VOLTAGE; MEANS CONNECTING THE FIRST AND THIRD CONDUCTIVE REGIONS TO ONE TERMINAL OF THE VOLTAGE-SUPPLY MEANS; AND MEANS CONNECTING THE SECOND CONDUCTIVE REGION TO ANOTHER TERMINAL OF THE VOLTAGE-SUPPLY MEANS; AT LEAST ONE OF SAID CONNECTING MEANS INCLUDING SERIES IMPEDANCE MEANS FOR CAUSING SAID ELECTROLUMINESCENT MATERIAL TO HAVE A MAXIMUM BRIGHTNESS WHEN NO LIGHT IMPINGES ON SAID PHOTOIMPEDANCE MATERIAL AND LESSER BRIGHTNESS INVERSELY PROPORTIONAL TO ANY LIGHT IMPINGING ON SAID PHOTO-IMPEDANCE MATERIAL.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |