US2844107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-energized multiple-unit railroad car train
Assignee: Pullman-Standard Car Manufacturing Co
•
Filing: 1956-02-27
•
Granted: 1958-07-22
•
Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Archie M Miers
- 👤 Sluys William Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:57
CPC Classifications
B; B61; B61F; B61F1/00; B61F1/06; B61D; B61D3/00; B61D3/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |