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US2546870A
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US
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High-frequency electrical oscillator
Assignee: Teledyne UK Ltd
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Filing: 1945-02-09
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Granted: 1951-03-27
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Expires: 1965-02-09
Abstract
No abstract record available.
Inventors
- 👤 Sayers James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:26
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/22; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2147159A
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US2250698A
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US2227594A
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US2247077A
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US2408235A
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US2414084A
Cited
US2408903A
Cited
US2418469A
Cited
US2414085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |