Patent US2509995A successfully refreshed from Google Patents.
US2509995A
Expired / Lapsed
US
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Side plate and post for railway cars
Assignee: Standard Railway Equipment Manufacturing Co
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Filing: 1946-11-22
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Granted: 1950-05-30
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Expires: 1966-11-22
Abstract
No abstract record available.
Inventors
- 👤 James S Swann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:44
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1649501A
Cited
US2036555A
Cited
US2067035A
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US2119367A
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US2324921A
Cited
US2390434A
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US2407523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |