US2904696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device and networks
Assignee: General Electric Co
•
Filing: 1956-05-15
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Granted: 1959-09-15
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Expires: 1976-05-15
Abstract
No abstract record available.
Inventors
- 👤 James F Elliott
- 👤 Richard E Halsted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:47
CPC Classifications
H; H05; H05B; H05B33/00; H03; H03F; H03F17/00
Claims Analysis
Total Claims: 0
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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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |