US3078427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical filter with piezoelectric drive
Assignee: Siemens and Halske AG
•
Filing: 1959-05-27
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Granted: 1963-02-19
•
Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Poschenrieder Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:02
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/10; H03H9/1007; H03H9/1014; H03H9/09; H03H9/46; H03H9/48; H03H9/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2373431A
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US2443471A
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US2596460A
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US2695357A
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US2829350A
Cited
US3015789A
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US2877432A
Cited
US2965861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |