US2839012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding device for freight vehicle
Assignee: Pullman-Standard Car Manufacturing Co
•
Filing: 1953-09-16
•
Granted: 1958-06-17
•
Expires: 1973-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jack E Gutridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1498087A
Cited
US1838975A
Cited
US2023972A
Cited
US2024444A
Cited
GB388168A
Cited
US2013345A
Cited
US2036344A
Cited
US2099288A
Cited
US2292310A
Cited
US2503368A
Cited
US2525388A
Cited
US2628397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |