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US2863076A
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Dielectrostrictive signal and energy transducers
Assignee: Sonotone Corp
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Filing: 1956-10-19
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Granted: 1958-12-02
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Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Heiman W Koren
- 👤 Joseph W Crownover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/04; H01; H01G; H01G7/00; H01G7/02; H01G7/025; H01G7/026; Y; Y10; Y10S; Y10S73/00; Y10S73/04; Y10S84/00; Y10S84/24; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2540194A
Cited
US2540187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |