Patent US3027474A successfully refreshed from Google Patents.
US3027474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Squirrel cage induction motor rotor
Assignee: General Electric Co
•
Filing: 1956-09-04
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Granted: 1962-03-27
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jr George M Rosenberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:02
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; H02K17/18; H02K17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE624366C
Cited
DE665147C
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GB183845A
Cited
CH165946A
Cited
US2067605A
Cited
GB493523A
Cited
US2175915A
Cited
DE662946C
Cited
GB532560A
Cited
US2794138A
Cited
US2758228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |