US2974296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical transducer
Assignee: General Electric Co
•
Filing: 1959-05-26
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Granted: 1961-03-07
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Expires: 1979-05-26
Abstract
No abstract record available.
Inventors
- 👤 Charles A Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:50
CPC Classifications
H; H02; H02M; H02M5/00; H03; H03H; H03H9/00; H03H9/46; H03H9/54; H03H9/56; H03H9/562; H10; H10N; H10N30/00; H10N30/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |