US3565492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic safety brake system
Assignee: Caterpillar Inc
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Filing: 1969-03-20
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Granted: 1971-02-23
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Expires: 1989-03-20
Abstract
Abstract A SYSTEM FOR PREVENTING A VEHICLE FROM TRAVELLING AT AN EXCESSIVELY DANGEROUS RATE OF SPEED INCLUDING A HYDRAULIC CIRCUIT TRIGGERED BY A SPEED SENSING MECHANISM TO ACTUATE AN OTHERWISE MANUAL OR PEDAL ACTUATED BRAKE VALVE.
Inventors
- 👤 Thomas E Allen
- 👤 Shairyl I Pearce
- 👤 Donald L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:39
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/14; B60T13/141; B60T8/00; B60T8/32; B60T8/86; Y; Y10; Y10T; Y10T137/00; Y10T137/0971
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |