Patent US2880346A successfully refreshed from Google Patents.
US2880346A
Expired / Lapsed
US
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Electroluminescent device
Assignee: RCA Corp
•
Filing: 1954-09-30
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Granted: 1959-03-31
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Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Nicoll
- 👤 Kazan Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:30
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2692948A
Cited
US2780731A
Cited
US2714683A
Cited
US2650310A
Cited
US2694785A
Cited
US2755400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |