Patent US3309712A successfully refreshed from Google Patents.
US3309712A
Expired / Lapsed
US
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Electroluminescent dynamic display device
Assignee: GTE Sylvania Inc
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Filing: 1963-06-05
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Granted: 1967-03-14
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Expires: 1983-06-05
Abstract
No abstract record available.
Inventors
- 👤 David L Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
AN ELECTROLUMINESCENT DYNAMIC DISPLAY DEVICE COMPRISING: A FIRST ELECTRICALLY CONDUCTIVE LAYER FORMED TO PROVIDE A FIRST ELECTRODE; A DIELECTRIC LAYER OF ELECTRIC FIELD RESPONSIVE PHOSPHORS DISPOSED UPON SAID FIRST ELECTRODE; A SECOND ELECTRODE OF RESTRICTED TERMINAL AREA IN CONTACT WITH SAID DIELECTRIC LAYER AND FORMED FOR MOVEMENT THEREUPON TO DISCRETELY DISPENSE A CONDUCTIVE SUBSTANCE HAVING A CONTROLLED RATE OF ELECTRICAL DECAY;
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |