US2676609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure operated wear resistant slurry valve
Assignee: MORRIS MACHINE WORKS
•
Filing: 1948-09-04
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Granted: 1954-04-27
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Expires: 1968-09-04
Abstract
No abstract record available.
Inventors
- 👤 William H Pfarrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:50
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; F16K1/2007; F16K1/2014; F16K1/2042; F16K1/205; F16K1/2057; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US378600A
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US615717A
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USRE19151E
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US1779503A
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US1923306A
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US2025665A
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US2256467A
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US2188216A
Cited
US2263462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |