Patent US3175116A successfully refreshed from Google Patents.
US3175116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent condenser
Assignee: Canrad Precision Industries Inc
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Filing: 1962-05-02
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Granted: 1965-03-23
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Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Feuer Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:12
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; H05B33/145; H05B33/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN AN ELECTROLUMINESCENT CONDENSER COMPRISING AN ELECTRODE, A LAYER OF PHOSPHOR AND DIELECTRIC MATERIAL OVER SAID ELECTRODE AND A TRANSPARENT ELECTRODE OVER THE LAYER OF PHOSPHOR AND DIELECTRIC, THE IMPROVEMENT WHICH COMPRISIES A FIRST FILM OF A FLUORIDE OF A GROUP II METAL BETWEEN SAID FIRST ELECTRODE AND SAID LAYER OF PHOSPHOR AND DIELECTRIC MATERIAL, AND A SECOND FILM OF A FLUORIDE OF A GROUP II METAL INTERPOSED BETWEEN SAID TRANSPARENT ELECTRODE AND SAID LAYER OF PHOSPHOR AND DIELECTRIC MATERIAL.
Claim 2
Dependent Claim
80 words
IN AN ELECTROLUMINESCENT CONDENSER COMPRISING AN ELECTRODE, A LAYER OF PHOSPHOR AND DIELECTRIC MATERIAL OVER SAID ELECTRODE AND A TRANSPARENT ELECTRODE OVER THE LAYER OF PHOSPHOR AND DIELECTRIC, THE IMPROVEMENT WHICH COMPRISIES A FIRST FILM OF A FLUORIDE OF A GROUP II METAL BETWEEN SAID FIRST ELECTRODE AND SAID LAYER OF PHOSPHOR AND DIELECTRIC MATERIAL, AND A SECOND FILM OF A FLUORIDE OF A GROUP II METAL INTERPOSED BETWEEN SAID TRANSPARENT ELECTRODE AND SAID LAYER OF PHOSPHOR AND DIELECTRIC 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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |