US2815469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetron oscillators
Assignee: Teledyne UK Ltd
•
Filing: 1951-12-26
•
Granted: 1957-12-03
•
Expires: 1971-12-26
Abstract
No abstract record available.
Inventors
- 👤 Sixsmith Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/54; H01J25/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2437279A
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US2446826A
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US2419172A
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US2482495A
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US2411953A
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US2454337A
Cited
US2462510A
Cited
US2609522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |