US892656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller for alternating-current motors.
Assignee: Diehl Manufacturing Co
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Filing: 1907-08-27
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Granted: 1908-07-07
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Expires: 1927-08-27
Abstract
No abstract record available.
Inventors
- 👤 George W Euker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:09
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/12; H02K17/14
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) | 1911-07-07 | 1912-01-06 | 1912-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-07-07 | 1916-01-06 | 1916-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-07-07 | 1920-01-06 | 1920-07-07 | $7700.00 | Window Closed / Lapsed |