Patent US2841292A successfully refreshed from Google Patents.
US2841292A
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High capacity draft gear with friction and rubber spring cushioning elements
Assignee: Cardwell Westinghouse Co
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Filing: 1953-10-28
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Granted: 1958-07-01
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Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 David S Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:36
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1585708A
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US1650381A
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US1874531A
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US1831084A
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US1947812A
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US2165375A
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US2501889A
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US2510278A
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US2555399A
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US2667277A
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US2588488A
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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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |