Patent US2966604A successfully refreshed from Google Patents.
US2966604A
Expired / Lapsed
US
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Electroluminescent lamp
Assignee: GTE Sylvania Inc
•
Filing: 1953-12-31
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Granted: 1960-12-27
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Dombrowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:53
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; Y; Y10; Y10S; Y10S116/00; Y10S116/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2564706A
Cited
US2566349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |