Patent US2826043A successfully refreshed from Google Patents.
US2826043A
Expired / Lapsed
US
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Pressure operated vapor-liquid selector valve for l. p. g. fuel systems
Assignee: Phillips Petroleum Co
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Filing: 1953-07-28
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Granted: 1958-03-11
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Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Howard E Simonson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:39
CPC Classifications
F; F02; F02M; F02M21/00; F02B; F02B43/00; F02M2700/00; F02M2700/12; F02M2700/126; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2572; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/7722; Y10T137/7748; Y10T137/7752; Y10T137/7781; Y10T137/7793; Y10T137/7801; Y10T137/7822; Y10T137/7837; Y10T137/7869
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1450893A
Cited
US1940090A
Cited
US1962214A
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US2226810A
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US2365423A
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US2543920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |