Patent US2650550A successfully refreshed from Google Patents.
US2650550A
Expired / Lapsed
US
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Snubbed bolster truck
Assignee: American Steel Foundries
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Filing: 1948-07-08
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Granted: 1953-09-01
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Expires: 1968-07-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:49
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)
US1130665A
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US2118006A
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US2257109A
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US2278012A
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US2333921A
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US2352693A
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US2378414A
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US2378415A
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US2365198A
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US2392597A
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US2434838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |