Patent US2860460A successfully refreshed from Google Patents.
US1471111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically-locking flat car for containers
Assignee: RIVER AND RAIL TRANSP ATION CO
•
Filing: 1921-11-10
•
Granted: 1923-10-16
•
Expires: 1941-11-10
Abstract
No abstract record available.
Inventors
- 👤 Eder Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:09
CPC Classifications
B; B61; B61D; B61D3/00; B61D3/16; B61D3/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-10-15 | 1927-04-16 | 1927-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-10-15 | 1931-04-16 | 1931-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-10-15 | 1935-04-16 | 1935-10-16 | $7700.00 | Window Closed / Lapsed |