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US2648799A
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Cavity resonator magnetron
Assignee: Patelhold Patenverwertungs and Elektro-Holding AG
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Filing: 1949-03-31
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Granted: 1953-08-11
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Expires: 1969-03-31
Abstract
No abstract record available.
Inventors
- 👤 Lardelli Otto Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:47
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/54; H01J25/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2128237A
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US2147159A
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FR867914A
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US2433416A
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US2432827A
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US2450023A
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US2500430A
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US2505529A
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US2432466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |