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Patent US2846273A successfully refreshed from Google Patents.
US2846273A
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US
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Fluid pressure brake apparatus
Assignee: Westinghouse Air Brake Co
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Filing: 1954-07-29
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Granted: 1958-08-05
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Expires: 1974-07-29
Abstract
No abstract record available.
Inventors
- 👤 Everett P Sexton
- 👤 Earle S Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:33
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/18; B60T15/24; B60T15/30; B60T15/302; B60T15/304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US902162A
Cited
US715088A
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US965616A
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US1890087A
Cited
US1879643A
Cited
US2048327A
Cited
US2215347A
Cited
GB605781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |