US2464745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric servomotor control system
Assignee: Singer Co
•
Filing: 1945-07-13
•
Granted: 1949-03-15
•
Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 Harry B Fuge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:11
CPC Classifications
H; H02; H02P; H02P27/00; H02P27/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB110359A
Cited
US1787133A
Cited
US1844704A
Cited
US2228078A
Cited
US2399872A
Cited
US2260122A
Cited
US2390463A
Cited
US2440319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |