US2889488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay lines for crossed field tubes
Assignee: Thales SA
•
Filing: 1955-05-05
•
Granted: 1959-06-02
•
Expires: 1975-05-05
Abstract
No abstract record available.
Inventors
- 👤 Reverdin Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2414121A
Cited
US2687777A
Cited
GB677587A
Cited
US2774913A
Cited
US2730678A
Cited
US2702370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |