US774896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric safety apparatus for cars or trains.
Assignee: Individual
•
Filing: 1904-05-12
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Granted: 1904-11-15
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Expires: 1924-05-12
Abstract
No abstract record available.
Inventors
- 👤 William P Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:09
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/40; B; B60; B60L; B60L3/00; B60L3/04; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/51
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) | 1907-11-15 | 1908-05-16 | 1908-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-11-15 | 1912-05-16 | 1912-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-11-15 | 1916-05-16 | 1916-11-15 | $7700.00 | Window Closed / Lapsed |