Patent US2624857A successfully refreshed from Google Patents.
US2624857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent lamp
Assignee: GTE Sylvania Inc
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Filing: 1949-10-08
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Granted: 1953-01-06
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Expires: 1969-10-08
Abstract
No abstract record available.
Inventors
- 👤 Eric L Mager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:47
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20; Y; Y10; Y10S; Y10S116/00; Y10S116/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
AN ELECTROLUMINESCENT LAMP COMPRISING AN ELECTRICALLY-CONDUCTING GLASS PIECE, A LAYER THEREON OF A FIELD-RESPONSIVE PHOSPHOR EMBEDDED IN A SOLID DIELECTRIC MATERIAL, AND A BACKING LAYER OF METAL THEREOVER.
Claim 2
Dependent Claim
28 words
AN ELECTROLUMINESCENT LAMP COMPRISING AN ELECTRICALLY-CONDUCTING GLASS PIECE, A LAYER THEREON OF A FIELD-RESPONSIVE PHOSPHOR EMBEDDED IN A SOLID DIELECTRIC MATERIAL, AND A BACKING LAYER OF METAL THEREOVER.
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) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |