Patent JPS6345666A successfully refreshed from Google Patents.
Patent JPS4924079A successfully refreshed from Google Patents.
US873064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of motor control.
Assignee: General Electric Co
•
Filing: 1907-04-06
•
Granted: 1907-12-10
•
Expires: 1927-04-06
Abstract
No abstract record available.
Inventors
- 👤 Wilbur L Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:34
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/16; H02P1/54; H02P1/58
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1910-12-09 | 1911-06-10 | 1911-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-12-09 | 1915-06-10 | 1915-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-12-09 | 1919-06-10 | 1919-12-10 | $7700.00 | Window Closed / Lapsed |