US2591060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excess flow control valve
Assignee: Phillips Petroleum Co
•
Filing: 1946-03-09
•
Granted: 1952-04-01
•
Expires: 1966-03-09
Abstract
No abstract record available.
Inventors
- 👤 Owen L Garretson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/24; F16K17/28; F16K17/30; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16L; F16L29/00; F16K2200/00; F16K2200/40; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586561A
Cited
US653860A
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US821859A
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US1060142A
Cited
FR465315A
Cited
US1718644A
Cited
US1873361A
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US1896673A
Cited
US2177779A
Cited
US2357321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |