Patent US2741996A successfully refreshed from Google Patents.
US2741996A
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US
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Railway truck
Assignee: General Steel Castings Corp
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Filing: 1952-01-28
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Granted: 1956-04-17
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Expires: 1972-01-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Kolesa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:10
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/02; B61F3/08; B61F3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2173725A
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US2168578A
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US2238593A
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US2394547A
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US2519169A
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US2642008A
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US2598870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |