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US630939A
Expired / Lapsed
US
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Controlling mechanism for electric-railway cars.
Assignee: WALKER Co
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Filing: 1898-12-07
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Granted: 1899-08-15
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Expires: 1918-12-07
Abstract
No abstract record available.
Inventors
- 👤 Sidney H Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/62
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) | 1902-08-15 | 1903-02-14 | 1903-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-08-15 | 1907-02-14 | 1907-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-08-15 | 1911-02-14 | 1911-08-16 | $7700.00 | Window Closed / Lapsed |