Patent US2551064A successfully refreshed from Google Patents.
US2551064A
Expired / Lapsed
US
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Snubbed bolster truck
Assignee: Scullin Steel Co
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Filing: 1945-03-29
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Granted: 1951-05-01
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Expires: 1965-03-29
Abstract
No abstract record available.
Inventors
- 👤 Fred H Spenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:51
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)
US994635A
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US2118006A
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US2257109A
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US2333920A
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US2333921A
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US2295553A
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US2348453A
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US2295557A
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US2295558A
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US2378229A
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US2390206A
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US2420229A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |