US2401144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator valve
Assignee: Alco Valve Co
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Filing: 1941-01-02
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Granted: 1946-05-28
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Expires: 1961-01-02
Abstract
No abstract record available.
Inventors
- 👤 John E Dube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/20; F25B41/22; G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/125; G05D23/126; G05D23/127; G05D23/128; G05D23/185; G05D23/1856; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/2278; Y10T137/7722; Y10T137/7737; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7766; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7792
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-05-27 | 1949-11-26 | 1950-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-27 | 1953-11-26 | 1954-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-27 | 1957-11-26 | 1958-05-28 | $7700.00 | Window Closed / Lapsed |