US2474595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for electric motors
Assignee: Iron Fireman Manufacturing Co
•
Filing: 1944-10-10
•
Granted: 1949-06-28
•
Expires: 1964-10-10
Abstract
No abstract record available.
Inventors
- 👤 Max C Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:21
CPC Classifications
H; H02; H02P; H02P7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1669386A
Cited
US1707195A
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US1707194A
Cited
US2157710A
Cited
US2300838A
Cited
US2319774A
Cited
US2333432A
Cited
US2305507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |