US2665404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unbalanced primary motor control system
Assignee: Cutler Hammer Inc
•
Filing: 1950-12-18
•
Granted: 1954-01-05
•
Expires: 1970-12-18
Abstract
No abstract record available.
Inventors
- 👤 William H Elliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:52
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/16; H02P25/32; H02P25/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2420192A
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US2460234A
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US2448256A
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US2583731A
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US2460037A
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US2597141A
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US2512000A
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US2519196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |