US2870874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency brake safety lock
Assignee: Individual
•
Filing: 1957-01-28
•
Granted: 1959-01-27
•
Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Cecil A Politte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:02
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/04; B60T11/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US836303A
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US1650963A
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US1804773A
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US1853517A
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US1843966A
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US2062371A
Cited
US2539538A
Cited
US2763349A
Cited
US2789667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |