US2936720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truck steering mechanism for trains
Assignee: Individual
•
Filing: 1957-09-11
•
Granted: 1960-05-17
•
Expires: 1977-09-11
Abstract
No abstract record available.
Inventors
- 👤 Francis E Van Alstine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:07
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/38; B61F5/44; B61G; B61G5/00; B61G5/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US503831A
Cited
DE552538C
Cited
US2030010A
Cited
US2106698A
Cited
US2756688A
Cited
FR1109124A
Cited
DE947617C
Cited
DE930151C
Cited
US2846954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |