Patent US2430257A successfully refreshed from Google Patents.
US2430257A
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US
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Motor control apparatus
Assignee: JOHN S SHUTE
•
Filing: 1943-06-15
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Granted: 1947-11-04
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Expires: 1963-06-15
Abstract
No abstract record available.
Inventors
- 👤 Robert F Teeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:00
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/02; H02P1/022; H02P1/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769619A
Cited
US1130476A
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US1552235A
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US1913557A
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US2007388A
Cited
US2069772A
Cited
US2220769A
Cited
US2262869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |