US2859411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulated traveling-wave tube
Assignee: Raytheon Co
•
Filing: 1953-06-19
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Granted: 1958-11-04
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Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
- 👤 William C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:39
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/60; H01J25/34; H01J25/42; H01J25/46; H03; H03B; H03B29/00; H03B9/00; H03B9/01; H03B9/04; H03B9/08; H03B9/10; H03C; H03C1/00; H03C1/28; H03C1/30; H03C3/00; H03C3/30; H03C3/32; H03C5/00; H03C5/02; H03C5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2482766A
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US2563807A
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US2576696A
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US2657314A
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US2635206A
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US2633505A
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BE510250A
Cited
GB699893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |