Patent US2640179A successfully refreshed from Google Patents.
US2640179A
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US
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Electric motor and stabilizing means therefor
Assignee: General Electric Co
•
Filing: 1951-02-06
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Granted: 1953-05-26
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Expires: 1971-02-06
Abstract
No abstract record available.
Inventors
- 👤 Ernst F W Alexanderson
- 👤 Samuel P Nixdorff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:30
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/298
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2082496A
Cited
US2239289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |