US1189947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller for electric motors.
Assignee: Cutler Hammer Manufacturing Co
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Filing: 1913-10-28
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Granted: 1916-07-04
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Expires: 1933-10-28
Abstract
No abstract record available.
Inventors
- 👤 Clark T Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:50
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/298
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) | 1919-07-04 | 1920-01-03 | 1920-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-07-04 | 1924-01-03 | 1924-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-07-04 | 1928-01-03 | 1928-07-04 | $7700.00 | Window Closed / Lapsed |