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US2726332A
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Frequency stabilization systems
Assignee: TDK Micronas GmbH
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Filing: 1952-02-28
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Granted: 1955-12-06
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Expires: 1972-02-28
Abstract
No abstract record available.
Inventors
- 👤 Arditi Maurice
- 👤 Parzen Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:33
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/02; H03L7/04; H01; H01J; H01J25/00; H01J25/34; H01J25/36; H01J25/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2434294A
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US2640156A
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US2468029A
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US2580007A
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US2594263A
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US2603773A
Cited
US2611832A
Cited
US2593113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |