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US2685846A
Expired / Lapsed
US
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Railway car antisidesway device
Assignee: ACF Industries Inc
•
Filing: 1947-03-07
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Granted: 1954-08-10
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Expires: 1967-03-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Gassner
- 👤 Macveigh James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:44
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/12; B61F3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US981131A
Cited
US1714646A
Cited
US2153389A
Cited
US2218634A
Cited
US2349610A
Cited
US2360748A
Cited
US2352039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |