Patent US2913071A successfully refreshed from Google Patents.
US2913071A
Expired / Lapsed
US
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Packaged brake unit for railway trucks
Assignee: Westinghouse Air Brake Co
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Filing: 1957-05-28
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Granted: 1959-11-17
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Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Emil G Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:35
CPC Classifications
B; B61; B61H; B61H1/00; B61H15/00; B61H15/0007; B61H15/0014; B61H15/0028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1559503A
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US2118236A
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US2223043A
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US2286517A
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US2561454A
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US2833381A
Cited
US2812042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |