Patent US2587315A successfully refreshed from Google Patents.
US2587315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad car truck
Assignee: Individual
•
Filing: 1945-03-15
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Granted: 1952-02-26
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Expires: 1965-03-15
Abstract
No abstract record available.
Inventors
- 👤 James L Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:27
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/02; B61F3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US466349A
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US594559A
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US825255A
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US932489A
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GB163007A
Cited
US1905252A
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US2015025A
Cited
US1976937A
Cited
US2079985A
Cited
US2105651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |