US2641199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door locking mechanism for hopper car doors
Assignee: Enterprise Railway Equipment Co
•
Filing: 1947-05-01
•
Granted: 1953-06-09
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 Dorey George Binet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:32
CPC Classifications
B; B61; B61D; B61D7/00; B61D7/14; B61D7/16; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0951; Y10T292/0959
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1105948A
Cited
US1327079A
Cited
US1584841A
Cited
US1612223A
Cited
US1886788A
Cited
US1977838A
Cited
US1809850A
Cited
US1861152A
Cited
US1997704A
Cited
US2482516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |