Patent US2944171A successfully refreshed from Google Patents.
US2944171A
Expired / Lapsed
US
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Intermediate ring squirrel cage rotor
Assignee: General Electric Co
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Filing: 1957-01-04
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Granted: 1960-07-05
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Expires: 1977-01-04
Abstract
No abstract record available.
Inventors
- 👤 Philip L Alger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:10
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; H02K17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1686699A
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US1694061A
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US2047831A
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US2067605A
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US2176871A
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US2243021A
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DE690541C
Cited
DE740689C
Cited
US2421860A
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US2528960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |