US3254254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact structure for an electro-luminescent device
Assignee: Philips North America LLC
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Filing: 1963-05-17
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Granted: 1966-05-31
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Ivan E Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/02; H05B33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN AN ELECTROLUMINESCENT DEVICE OF THE TYPE HAVING A BASE ELECTRODE AND A SUPERPOSED LIGHT-TRANSMITTING FRONT ELECTRODE, A LAYER OF DIELECTRIC MATERIAL CONTAINING AN ELECTROLUMINESCENT PHOSPHOR SANDWICHED BETWEEN SAID ELECTRODES AND A PROTECTIVE LAYER OF INSULATING LIGHT-TRANSMITTING MATERIAL COVERING SAID LIGHT-TRANSMITTING ELECTRODE; AN IMPROVED CONTACT ASSEMBLY FOR THE LIGHT-TRANSMITTING ELECTRODE COMPRISING AN OPENING IN SAID LIGHT-TRANSMITTING ELECTRODE AND SAID DIELECTRIC LAYER CONTAINING THE ELECTROLUMINESCENT MATERIAL, A BODY OF ELECTRICAL INSULATING MATERIAL IN SAID OPENING, AN ELONGATED CONTACT STRIP OF CONDUCTIVE MATERIAL HAVING A PORTION WHICH OVERLIES SAID BODY OF INSULATING MATERIAL AND ANOTHER PORTION WHICH CONNECTS WITH SAID LIGHT-TRANSMITTING ELECTRODE, AND AN OPENING IN SAID PROTECTIVE LAYER EXPOSING A PREDETERMINED AREA OF THE PORTION OF SAID CONTACT STRIP WHICH OVERLIES THE BODY OF INSULATING MATERIAL, THE PORTION OF SAID STRIP THAT CONNECTS WITH SAID LIGHT-TRANSMITTING ELECTRODE BEING COVERED BY AND HERMETICALLY UNITED TO SAID PROTECTIVE LAYER SO THAT THE STRIP CONSTITUTES A SEALED-IN CONTACT FOR SAID DEVICE.
Claim 2
Dependent Claim
157 words
IN AN ELECTROLUMINESCENT DEVICE OF THE TYPE HAVING A BASE ELECTRODE AND A SUPERPOSED LIGHT-TRANSMITTING FRONT ELECTRODE, A LAYER OF DIELECTRIC MATERIAL CONTAINING AN ELECTROLUMINESCENT PHOSPHOR SANDWICHED BETWEEN SAID ELECTRODES AND A PROTECTIVE LAYER OF INSULATING LIGHT-TRANSMITTING MATERIAL COVERING SAID LIGHT-TRANSMITTING ELECTRODE; AN IMPROVED CONTACT ASSEMBLY FOR THE LIGHT-TRANSMITTING ELECTRODE COMPRISING AN OPENING IN SAID LIGHT-TRANSMITTING ELECTRODE AND SAID DIELECTRIC LAYER CONTAINING THE ELECTROLUMINESCENT MATERIAL, A BODY OF ELECTRICAL INSULATING MATERIAL IN SAID OPENING, AN ELONGATED CONTACT STRIP OF CONDUCTIVE MATERIAL HAVING A PORTION WHICH OVERLIES SAID BODY OF INSULATING MATERIAL AND ANOTHER PORTION WHICH CONNECTS WITH SAID LIGHT-TRANSMITTING ELECTRODE, AND AN OPENING IN SAID PROTECTIVE LAYER EXPOSING A PREDETERMINED AREA OF THE PORTION OF SAID CONTACT STRIP WHICH OVERLIES THE BODY OF INSULATING MATERIAL, THE PORTION OF SAID STRIP THAT CONNECTS WITH SAID LIGHT-TRANSMITTING ELECTRODE BEING COVERED BY AND HERMETICALLY UNITED TO SAID PROTECTIVE LAYER SO THAT THE STRIP CONSTITUTES A SEALED-IN CONTACT FOR SAID DEVICE.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |