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US2638854A
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Welded corner post assembly
Assignee: Pullman-Standard Car Manufacturing Co
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Filing: 1948-08-26
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Granted: 1953-05-19
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Expires: 1968-08-26
Abstract
No abstract record available.
Inventors
- 👤 Jr James E Candlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:37
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US924005A
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US1834642A
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US1937615A
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US2265178A
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US2185168A
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US2245611A
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US2379640A
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US2480789A
Cited
US2555296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |