US2936393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low noise traveling-wave tube
Assignee: Raytheon Co
•
Filing: 1956-12-28
•
Granted: 1960-05-10
•
Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Malcolm R Currie
- 👤 Donald C Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:00
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/02; H01J3/029; H01J23/00; H01J23/02; H01J23/04; H01J23/05; H01J23/06; H01J23/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2381539A
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US2449569A
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US2650956A
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US2632130A
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US2800602A
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US2762948A
Cited
US2800603A
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US2792518A
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US2741718A
Cited
US2817035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |