Patent US2746252A successfully refreshed from Google Patents.
US2746252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety cylinder for hydraulic brakes
Assignee: J VAL CONNELL
•
Filing: 1954-04-13
•
Granted: 1956-05-22
•
Expires: 1974-04-13
Abstract
No abstract record available.
Inventors
- 👤 Reese Cole Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/28; B60T11/32; B60T17/00; B60T17/18; B60T17/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA460859A
Cited
US1831081A
Cited
US2093015A
Cited
US2077646A
Cited
US2238124A
Cited
US2239348A
Cited
US2581792A
Cited
US2674095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |