US2730666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power control device for electric motor
Assignee: Individual
•
Filing: 1953-03-23
•
Granted: 1956-01-10
•
Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jack H Cohen
- 👤 Robert A Goslin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:12
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/04; F16D7/042; F16D7/044; C; C07; C07J; C07J71/00; C07J75/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |