Patent US2479794A successfully refreshed from Google Patents.
US2479794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing gear for locomotives
Assignee: Individual
•
Filing: 1944-10-23
•
Granted: 1949-08-23
•
Expires: 1964-10-23
Abstract
No abstract record available.
Inventors
- 👤 William F Triplett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:18
CPC Classifications
B; B61; B61C; B61C17/00; B61C17/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1682888A
Cited
US1850392A
Cited
US790968A
Cited
US789836A
Cited
US1477557A
Cited
US1479440A
Cited
US1847693A
Cited
US1891545A
Cited
US2064051A
Cited
US2166206A
Cited
US2352140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |