US3288923A
Expired / Lapsed
US
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Synchronizing apparatus using controlled slip synchronous motor
Assignee: Panasonic Holdings Corp
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Filing: 1962-10-19
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Granted: 1966-11-29
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Expires: 1982-10-19
Abstract
No abstract record available.
Inventors
- 👤 Arimura Ichiro
- 👤 Wada Sadaharu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:30
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/18; H02P23/186; H02P25/00; H02P25/02; H02P25/022; H02P25/024
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |