Patent US2479737A successfully refreshed from Google Patents.
US2479737A
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Cylinder filling and dispensing valve
Assignee: Phillips Petroleum Co
•
Filing: 1946-02-25
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Granted: 1949-08-23
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Expires: 1966-02-25
Abstract
No abstract record available.
Inventors
- 👤 Owen L Garretson
- 👤 William R Eddy
- 👤 Clair Theodore A St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:38
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/304; F16K1/305; F16K1/306; Y; Y10; Y10S; Y10S137/00; Y10S137/906; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/598; Y10T137/612; Y10T137/7722; Y10T137/7771; Y10T137/778; Y10T137/7837; Y10T137/7838; Y10T137/8593; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2254209A
Cited
US2107704A
Cited
US2172311A
Cited
US2176829A
Cited
US2341579A
Cited
US2440230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |