Patent US2482452A successfully refreshed from Google Patents.
US2482452A
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Concentric line cavity resonator device
Assignee: Westinghouse Electric Corp
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Filing: 1943-08-19
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Granted: 1949-09-20
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Expires: 1963-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alpert Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:55
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2170219A
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US2190668A
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US2259690A
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US2320860A
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US2368031A
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US2372213A
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US2409694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |