US2873380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device
Assignee: RCA Corp
•
Filing: 1952-10-20
•
Granted: 1959-02-10
•
Expires: 1972-10-20
Abstract
No abstract record available.
Inventors
- 👤 Kazan Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/42; H; H05; H05B; H05B33/00; H05B33/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |