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US2575454A
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US
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Railway car framing structure
Assignee: ACF Industries Inc
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Filing: 1947-03-29
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Granted: 1951-11-20
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Expires: 1967-03-29
Abstract
No abstract record available.
Inventors
- 👤 Otto A Kuhler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:04
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075939A
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US2101557A
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US2023046A
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DE686838C
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US2185977A
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US2249703A
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US2223746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |