Patent US6540762B1 successfully refreshed from Google Patents.
US675293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller for electric motors.
Assignee: Individual
•
Filing: 1898-08-27
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Granted: 1901-05-28
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Expires: 1918-08-27
Abstract
No abstract record available.
Inventors
- 👤 Oscar H Pieper
- 👤 Alphonse F Pieper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/56; H01H19/58
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) | 1904-05-27 | 1904-11-26 | 1905-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-05-27 | 1908-11-26 | 1909-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-05-27 | 1912-11-26 | 1913-05-28 | $7700.00 | Window Closed / Lapsed |