US2809328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetron amplifiers
Assignee: Raytheon Co
•
Filing: 1951-11-08
•
Granted: 1957-10-08
•
Expires: 1971-11-08
Abstract
No abstract record available.
Inventors
- 👤 Edward C Dench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:04
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/42; H01J25/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1657574A
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US2013093A
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US2130510A
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US2213543A
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US2269613A
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US2248712A
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US2412372A
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US2462137A
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US2673306A
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US2620458A
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US2611878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |