Patent US2963986A successfully refreshed from Google Patents.
US2963986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined highway and rail freight units
Assignee: Dominion Foundries and Steel Ltd
•
Filing: 1956-10-25
•
Granted: 1960-12-13
•
Expires: 1976-10-25
Abstract
No abstract record available.
Inventors
- 👤 Richard N Dobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:16
CPC Classifications
B; B61; B61D; B61D3/00; B61D3/16; B61D3/18; B61D3/182; B61D3/184
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1365087A
Cited
US1858769A
Cited
US2036535A
Cited
US2066836A
Cited
US2142411A
Cited
US2150116A
Cited
US2513552A
Cited
US2709969A
Cited
US2839012A
Cited
US2804315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |