US2870724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway flat car underframe
Assignee: Pullman-Standard Car Manufacturing Co
•
Filing: 1954-01-27
•
Granted: 1959-01-27
•
Expires: 1974-01-27
Abstract
No abstract record available.
Inventors
- 👤 Jack E Gutridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:54
CPC Classifications
B; B61; B61D; B61D3/00; B61D3/16; B61D3/18; B61D3/187; B61D3/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US509300A
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US650859A
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US741799A
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US986422A
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US1014791A
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US2118364A
Cited
US2195821A
Cited
US2183054A
Cited
US2635559A
Cited
US2764299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |