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US2446051A
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US
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Control valve
Assignee: Stewart Warner Corp
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Filing: 1943-12-03
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Granted: 1948-07-27
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Expires: 1963-12-03
Abstract
No abstract record available.
Inventors
- 👤 John H Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:16
CPC Classifications
—
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1461086A
Cited
US1237922A
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US2146092A
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US2245691A
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US2179267A
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US2207840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |