US2864469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure locking unit for hydraulic brakes
Assignee: Individual
•
Filing: 1953-06-15
•
Granted: 1958-12-16
•
Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 John J Schlumbrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:15
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2502118A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |