Patent US2424331A successfully refreshed from Google Patents.
US2424331A
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US
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Brake valve
Assignee: Alco Valve Co
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Filing: 1943-09-20
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Granted: 1947-07-22
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Expires: 1963-09-20
Abstract
No abstract record available.
Inventors
- 👤 Howard E Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:44
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/14; B60T13/141; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7834; Y10T137/8593; Y10T137/87169; Y10T137/87233; Y10T137/87257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1855348A
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US1791901A
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US1812269A
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US1874297A
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US1927700A
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US2243781A
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US2317846A
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US2324690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-21 | 1951-01-20 | 1951-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-21 | 1955-01-20 | 1955-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-21 | 1959-01-20 | 1959-07-22 | $7700.00 | Window Closed / Lapsed |