US3114045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-conductive translucent electroluminescent device and method of manufacture
Assignee: EMI Group Ltd
•
Filing: 1957-08-14
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Granted: 1963-12-10
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Expires: 1977-08-14
Abstract
No abstract record available.
Inventors
- 👤 Mash Derek Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/28; H01; H01B; H01B1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN ELECTRO-LUMINESCENT DEVICE COMPRISING A FIRST LAYER OF ELECTRO-LUMINESCENT MATERIAL, AN ELECTRICALLYCONDUCTING LAYER ON ONE SIDE OF SAID FIRST LAYER, AND ON THE OPPOSITE SIDE OF SAID FIRST LAYER A TRANSLUCENT LAYER COMPRISING A THIN LAYER OF SMALL GLASS BEADS ATTACHED TO SAID FIRST LAYER AND ELECTRICALLY-CONDUCTING MATERIAL FORMING A NETWORK SURROUNDING SAID BEADS.
Claim 2
Dependent Claim
20 words
THE DEVICE OF CLAIM 6 IN WHICH THERE IS A PHOTOCONDUCTIVE LAYER BETWEEN THE ELECTROLUMINESCENT LAYER AND THE TRANSLUCENT LAYER.
References Cited (Backward Citations)
US2495697A
Cited
US2773992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |