Patent US865819A successfully refreshed from Google Patents.
US865819A
Expired / Lapsed
US
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Motor-control system.
Assignee: Allis Chalmers Corp
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Filing: 1907-01-28
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Granted: 1907-09-10
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Expires: 1927-01-28
Abstract
No abstract record available.
Inventors
- 👤 William H Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:36
CPC Classifications
B; B60; B60L; B60L50/00; B60L50/30; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
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) | 1910-09-09 | 1911-03-11 | 1911-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-09-09 | 1915-03-11 | 1915-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-09-09 | 1919-03-11 | 1919-09-10 | $7700.00 | Window Closed / Lapsed |