Patent US2917271A successfully refreshed from Google Patents.
US2917271A
Expired / Lapsed
US
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High pressure metering valve
Assignee: Individual
•
Filing: 1954-08-24
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Granted: 1959-12-15
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Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 George W Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:09
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US605989A
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FR378947A
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US968132A
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US2232784A
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US2278721A
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US2511109A
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US2598187A
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US2692750A
Cited
US2768643A
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US2696967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |