US2689926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam tubes
Assignee: RCA Corp
•
Filing: 1950-02-25
•
Granted: 1954-09-21
•
Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Donald S Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:19
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24; H01; H01J; H01J29/00; H01J29/46; H01J29/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2630548A
Cited
FR868403A
Cited
US2305646A
Cited
US2441296A
Cited
US2490812A
Cited
US2463535A
Cited
US2446440A
Cited
US2621245A
Cited
US2518200A
Cited
US2496633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |