US3401986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle braking system
Assignee: Harry Ferguson Research Ltd
•
Filing: 1967-01-26
•
Granted: 1968-09-17
•
Expires: 1987-01-26
Abstract
No abstract record available.
Inventors
- 👤 Walker Frederick James
- 👤 Bent William Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:31
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/50; B60T8/5018; B60T8/5025; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T8/38; B60T8/44; B60T8/447; B60T8/448; B60T8/72; B60T8/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1770194A
Cited
US1718673A
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US2711230A
Cited
US2796154A
Cited
US3004801A
Cited
US3093422A
Cited
FR1330329A
Cited
US3265446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |