US2565708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic valve for operating on very short waves
Assignee: Thales SA
•
Filing: 1947-05-21
•
Granted: 1951-08-28
•
Expires: 1967-05-21
Abstract
No abstract record available.
Inventors
- 👤 Warnecke Robert
- 👤 Bernier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:55
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/10; H01J25/12; H01J25/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2304186A
Cited
US2305883A
Cited
US2424959A
Cited
US2411289A
Cited
US2409224A
Cited
US2452048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |