US2774924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multispeed single phase motor
Assignee: CENTURY ELECTRIC CO
•
Filing: 1953-02-24
•
Granted: 1956-12-18
•
Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Witt Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:52
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/04; H02K17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1867328A
Cited
US1880565A
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US1933497A
Cited
US1961793A
Cited
US2068559A
Cited
US2267805A
Cited
US2244757A
Cited
US2671879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |