US3544171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-skid device for hydraulic brake system
Assignee: Individual
•
Filing: 1969-02-20
•
Granted: 1970-12-01
•
Expires: 1989-02-20
Abstract
No abstract record available.
Inventors
- 👤 Waldermar Lester
- 👤 Lennart Bror Anders Swiden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:50
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/42; B60T8/4208; B60T8/4225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3093422A
Cited
US3486800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |