US2738441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning means for magnetrons
Assignee: TDK Micronas GmbH
•
Filing: 1951-04-02
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Granted: 1956-03-13
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Expires: 1971-04-02
Abstract
No abstract record available.
Inventors
- 👤 Patrick E Dorney
- 👤 Charles P Majkrzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:14
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J23/213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2293152A
Cited
US2408237A
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US2444435A
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US2429295A
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US2542908A
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US2448573A
Cited
US2615156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |