US3205393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent lamp with a dielectric reflective material
Assignee: EMI Group Ltd
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Filing: 1954-11-30
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Granted: 1965-09-07
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Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Mash Derek Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:34
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22; H05B33/24; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN ELECTROLUMINESCENT LAMP COMPRISING A FIRST CONDUCTIVE ELECTRODE WHICH IS CAPABLE OF TRANSMITTING LIGHT, A SECOND CONDUCTIVE ELECTRODE SPACED FROM THE FIRST ELECTRODE, A LIGHT-PRODUCING LAYER DISPOSED BETWEEN THE TWO ELECTRODES AND COMPRISING AN INTIMATE MIXTURE OF ELECTROLUMINESCENT AND DIELECTRIC MATERIALS, AND A LIGHT-REFLECTING DIELECTRIC LAYER OF HIGH DIELECTRIC CONSTANT DISPOSED BETWEEN THE LIGHT-PRODUCING LAYER AND THE SAID SECOND CONDUCTIVE ELECTRODE AND CAPABLE OF REFLECTING LIGHT FROM THE LIGHT-PRODUCING LAYER TOWARD THE SAID FIRST ELECTRODE.
Claim 2
Dependent Claim
75 words
AN ELECTROLUMINESCENT LAMP COMPRISING A FIRST CONDUCTIVE ELECTRODE WHICH IS CAPABLE OF TRANSMITTING LIGHT, A SECOND CONDUCTIVE ELECTRODE SPACED FROM THE FIRST ELECTRODE, A LIGHT-PRODUCING LAYER DISPOSED BETWEEN THE TWO ELECTRODES AND COMPRISING AN INTIMATE MIXTURE OF ELECTROLUMINESCENT AND DIELECTRIC MATERIALS, AND A LIGHT-REFLECTING DIELECTRIC LAYER OF HIGH DIELECTRIC CONSTANT DISPOSED BETWEEN THE LIGHT-PRODUCING LAYER AND THE SAID SECOND CONDUCTIVE ELECTRODE AND CAPABLE OF REFLECTING LIGHT FROM THE LIGHT-PRODUCING LAYER TOWARD THE SAID FIRST ELECTRODE.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |