Patent US2808552A successfully refreshed from Google Patents.
US2808552A
Expired / Lapsed
US
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Induction motor and control
Assignee: Individual
•
Filing: 1954-04-05
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Granted: 1957-10-01
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Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 Voege Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:52
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE552428C
Cited
US919524A
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US931302A
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US1013753A
Cited
US1183548A
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US1185461A
Cited
AT95974B
Cited
GB359207A
Cited
US2037532A
Cited
US2490181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |