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Patent US2480462A successfully refreshed from Google Patents.
US2480462A
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Tunable magnetron
Assignee: AT&T Inc
•
Filing: 1944-01-07
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Granted: 1949-08-30
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Expires: 1964-01-07
Abstract
No abstract record available.
Inventors
- 👤 Howard W Garbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:46
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2079809A
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GB509102A
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US2259690A
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US2306860A
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US2374810A
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US2408234A
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US2414785A
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US2414496A
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US2422465A
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US2408817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |