Patent US2580760A successfully refreshed from Google Patents.
US2580760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car
Assignee: Individual
•
Filing: 1946-05-17
•
Granted: 1952-01-01
•
Expires: 1966-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:54
CPC Classifications
B; B61; B61D; B61D19/00; B61D19/003; B61D19/004; E; E05; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/123
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US16831A
Cited
US93359A
Cited
US781643A
Cited
US728044A
Cited
US1119940A
Cited
US1284413A
Cited
US1688685A
Cited
US2061318A
Cited
US1861888A
Cited
US2167427A
Cited
US2292251A
Cited
US2258447A
Cited
US2452163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |