Patent US2589277A successfully refreshed from Google Patents.
US2589277A
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Motor control system
Assignee: D ROBERT LAUGHTER
•
Filing: 1948-11-05
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Granted: 1952-03-18
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Expires: 1968-11-05
Abstract
No abstract record available.
Inventors
- 👤 Noodleman Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:29
CPC Classifications
H; H02; H02P; H02P3/00; H02P3/06; H02P3/18; H02P3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |