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Patent US2695982A successfully refreshed from Google Patents.
US2695982A
Expired / Lapsed
US
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Control circuit for alternating current motors
Assignee: Askania Regulator Co
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Filing: 1944-12-23
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Granted: 1954-11-30
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Expires: 1964-12-23
Abstract
No abstract record available.
Inventors
- 👤 Soller Walter
- 👤 Carl A Schneider
- 👤 Harold E Hancock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:00
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/16; H02P25/32; H02P25/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1231666A
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US1353815A
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US1503213A
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US1479561A
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US1831069A
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US1849646A
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US1844704A
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US2102911A
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US2228078A
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US2221612A
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US2287459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |