US2896117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear magnetron traveling wave tube
Assignee: Raytheon Co
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Filing: 1955-02-28
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Granted: 1959-07-21
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Charles K Birdsall
- 👤 Lester M Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:15
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/42; H01J25/44; H01J23/00; H01J23/16; H01J23/24
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) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |