US3267318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device
Assignee: GTE Sylvania Inc
•
Filing: 1963-04-03
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Granted: 1966-08-16
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Ronald S Lynch
- 👤 Bradford K Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:20
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A LAMINATED ELECTROLUMINESCENT DEVICE COMPRISING: A FIRST ELECTRICALLY CONDUCTIVE LAYER FORMING A FIRST ELECTRODE; A FIRST DIELECTRIC LAYER OF CERAMIC HAVING ELECTRIC FIELD RESPONSIVE PHOSPHORS EMBEDDED THEREIN COVERING THE SURFACE OF SAID FIRST ELECTRODE, SAID FIRST DIELECTRIC HAVING PINHOLES IN THE SURFACE THEREOF; SEALING MEANS IN THE FORM OF A SECOND DIELECTRIC LAYER OF A SUBSTANTIALLY GLOSS WHITE SYNTHETIC PLASTIC RESIN OVERLYING SAID CERAMIC LAYER AND FILLING IN SAID PINHOLES IN THE SURFACE OF SAID FIRST DIELECTRIC LAYER, SAID PLASTIC RESIN HAVING A CURING TEMPERATURE OF LESS THAN 200*C. AND HAVING LIGHT REFLECTIVE PROPERTIES TO ENHANCE THE LIGHT RADIATION EMANATING FROM SAID OPHOSPHORS; AND A SECOND ELECTRICALLY CONDUCTIVE LAYER FORMING A SECOND ELECTRODE OVERLAYING SAID SECOND DIELECTRIC LAYER.
Claim 2
Dependent Claim
118 words
A LAMINATED ELECTROLUMINESCENT DEVICE COMPRISING: A FIRST ELECTRICALLY CONDUCTIVE LAYER FORMING A FIRST ELECTRODE; A FIRST DIELECTRIC LAYER OF CERAMIC HAVING ELECTRIC FIELD RESPONSIVE PHOSPHORS EMBEDDED THEREIN COVERING THE SURFACE OF SAID FIRST ELECTRODE, SAID FIRST DIELECTRIC HAVING PINHOLES IN THE SURFACE THEREOF; SEALING MEANS IN THE FORM OF A SECOND DIELECTRIC LAYER OF A SUBSTANTIALLY GLOSS WHITE SYNTHETIC PLASTIC RESIN OVERLYING SAID CERAMIC LAYER AND FILLING IN SAID PINHOLES IN THE SURFACE OF SAID FIRST DIELECTRIC LAYER, SAID PLASTIC RESIN HAVING A CURING TEMPERATURE OF LESS THAN 200*C. AND HAVING LIGHT REFLECTIVE PROPERTIES TO ENHANCE THE LIGHT RADIATION EMANATING FROM SAID OPHOSPHORS; AND A SECOND ELECTRICALLY CONDUCTIVE LAYER FORMING A SECOND ELECTRODE OVERLAYING SAID SECOND DIELECTRIC LAYER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |