US2794936A
Expired / Lapsed
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Space-charge wave tubes
Assignee: Thales SA
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Filing: 1953-12-31
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Granted: 1957-06-04
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Huber Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:39
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/20; H01; H01J; H01J25/00; H01J25/34; H01J25/42; H01J25/44; H01J25/48; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/10; H03C; H03C1/00; H03C1/32; H03C5/00; H03C5/02; H03C5/04; H03G; H03G11/00; H03G11/006
Claims Analysis
Total Claims: 0
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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) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |