US2924468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail end coupling device
Assignee: Individual
•
Filing: 1955-08-31
•
Granted: 1960-02-09
•
Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Pinson Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:23
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/1413; E04H17/1447; E04H17/1482
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367974A
Cited
US425926A
Cited
US666236A
Cited
US1483311A
Cited
US1837354A
Cited
GB364805A
Cited
FR773310A
Cited
US2674476A
Cited
US2807834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |