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US2865393A
Expired / Lapsed
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Valve
Assignee: Phillips Petroleum Co
•
Filing: 1954-08-04
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Granted: 1958-12-23
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Expires: 1974-08-04
Abstract
No abstract record available.
Inventors
- 👤 William H Edge
- 👤 Ronald G Hillier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:47
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04; F16K3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1727644A
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US1727677A
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US1613138A
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US2046759A
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US2035548A
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US2156967A
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US2455658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |