Patent US2705924A successfully refreshed from Google Patents.
US2705924A
Expired / Lapsed
US
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Railway truck
Assignee: General Steel Castings Corp
•
Filing: 1949-07-28
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Granted: 1955-04-12
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Expires: 1969-07-28
Abstract
No abstract record available.
Inventors
- 👤 James C Travilla
- 👤 Thomas R Gilchrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:03
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/02; B61F3/04; B61F3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US311553A
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US975303A
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US1502988A
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US1503847A
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US1893032A
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US1948250A
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US1895500A
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CH147652A
Cited
US1757323A
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US2252382A
Cited
FR876205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |