US2576367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway truck bolster-car bolster connection
Assignee: Individual
•
Filing: 1948-05-12
•
Granted: 1951-11-27
•
Expires: 1968-05-12
Abstract
No abstract record available.
Inventors
- 👤 Spearman Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:26
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/12; B61F5/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US332682A
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US774673A
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US784837A
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US1008921A
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US1346765A
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US1408321A
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US1686182A
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US1765432A
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US1707536A
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US1995113A
Cited
US1978207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |