US2510353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway truck bolster suspension
Assignee: General Steel Castings Corp
•
Filing: 1948-04-24
•
Granted: 1950-06-06
•
Expires: 1968-04-24
Abstract
No abstract record available.
Inventors
- 👤 Jr James C Travilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:50
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US778841A
Cited
US1924237A
Cited
US1762886A
Cited
US2097277A
Cited
US2163253A
Cited
US2317398A
Cited
US2264701A
Cited
US2419473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |