US2964141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic brake locking device
Assignee: Individual
•
Filing: 1957-08-19
•
Granted: 1960-12-13
•
Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Schlumbrecht John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:42
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)
US2780240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |