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Patent US2740932A successfully refreshed from Google Patents.
US2740932A
Expired / Lapsed
US
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Two speed motor control
Assignee: General Precision Laboratory Inc
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Filing: 1954-04-27
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Granted: 1956-04-03
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Expires: 1974-04-27
Abstract
No abstract record available.
Inventors
- 👤 George W King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:08
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/02; H02P25/04; H02P6/00; H02P6/24; H02P8/00; H02P8/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2419431A
Cited
US1954657A
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US2141056A
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US2227467A
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US2119205A
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US2196402A
Cited
US2586095A
Cited
US2677087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |