US2941103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent cell and method of making same
Assignee: Egyesuelt Izzolampa es Villamossagi Rt
•
Filing: 1957-01-08
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Granted: 1960-06-14
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Expires: 1977-01-08
Abstract
No abstract record available.
Inventors
- 👤 Nagy Elemer
- 👤 Szabo Janos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:09
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN ELECTROLUMINESCENT CELL HAVING A LAYER CAPABLE OF ELECTROLUMINESCENCE CONTAINING A BINDING MATERIAL AND A FILLER AND PLACED BETWEEN, AND IN INTIMATE CONTACT WITH TWO ELECTRODES, ONE AT LEAST OF WHICH IS SUBSTANTIALLY TRANSPARENT AND WHICH BOTH HAVE A RESISTANCE OF LESS THAN 1000 OHMS PER CM.2, SAID LAYER CONTAINING IN ADDITION A FINELY GRANULATED INORGANIC FILLING SUBSTANCE, ALSO IN THE BINDING MATERIAL, WHOSE DIELECTRIC CONSTANT IS AT LEAST 20, WHOSE DIELECTRIC LOSS IS NOT MORE THAN 0.2, WHOSE WEIGHT REPRESENTS BETWEEN 10% AND 200% OF THE WEIGHT OF THE PHOSPHOR PRESENT, AND WHOSE PARTICLE SIZE IS NOT GREATER THAN 5 MICRONS.
Claim 2
Dependent Claim
102 words
AN ELECTROLUMINESCENT CELL HAVING A LAYER CAPABLE OF ELECTROLUMINESCENCE CONTAINING A BINDING MATERIAL AND A FILLER AND PLACED BETWEEN, AND IN INTIMATE CONTACT WITH TWO ELECTRODES, ONE AT LEAST OF WHICH IS SUBSTANTIALLY TRANSPARENT AND WHICH BOTH HAVE A RESISTANCE OF LESS THAN 1000 OHMS PER CM.2, SAID LAYER CONTAINING IN ADDITION A FINELY GRANULATED INORGANIC FILLING SUBSTANCE, ALSO IN THE BINDING MATERIAL, WHOSE DIELECTRIC CONSTANT IS AT LEAST 20, WHOSE DIELECTRIC LOSS IS NOT MORE THAN 0.2, WHOSE WEIGHT REPRESENTS BETWEEN 10% AND 200% OF THE WEIGHT OF THE PHOSPHOR PRESENT, AND WHOSE PARTICLE SIZE IS NOT GREATER THAN 5 MICRONS.
References Cited (Backward Citations)
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Cited
US2624857A
Cited
US2765419A
Cited
US2728731A
Cited
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Cited
GB764867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |