US1823601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous self starting motor
Assignee: Hansen Manufacturing Co Inc
•
Filing: 1929-05-11
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Granted: 1931-09-15
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Expires: 1949-05-11
Abstract
No abstract record available.
Inventors
- 👤 Julius W Hansen
- 👤 William L Hansen
- 👤 Ira N Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:43
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/24; H02K1/246; H02K19/00; H02K19/02; H02K19/04; H02K19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-09-14 | 1935-03-16 | 1935-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-14 | 1939-03-16 | 1939-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-14 | 1943-03-16 | 1943-09-15 | $7700.00 | Window Closed / Lapsed |