Patent US2609757A successfully refreshed from Google Patents.
US2609757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway truck
Assignee: Motors Liquidation Co
•
Filing: 1947-04-05
•
Granted: 1952-09-09
•
Expires: 1967-04-05
Abstract
No abstract record available.
Inventors
- 👤 Martin P Blomberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:15
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/08; B61F5/12; B61F5/125
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1226756A
Cited
US1608856A
Cited
US1484954A
Cited
US1810718A
Cited
US2023756A
Cited
US2046391A
Cited
GB487468A
Cited
FR839397A
Cited
US2211462A
Cited
US2402501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |