Patent US2291678A successfully refreshed from Google Patents.
US2291678A
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Dispensing system for volatile liquids
Assignee: Phillips Petroleum Co
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Filing: 1940-08-02
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Granted: 1942-08-04
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Expires: 1960-08-02
Abstract
No abstract record available.
Inventors
- 👤 George R Benz
- 👤 Gerald L Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:52
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0332; F17C2205/0338; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2223/04; F17C2223/042; F17C2223/046; F17C2223/047; F17C2225/00; F17C2225/01; F17C2225/0146; F17C2225/0153; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/0426; F17C2260/00; F17C2260/02; F17C2260/024; F17C2265/00; F17C2265/06; F17C2265/061; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0147; F17C2270/0157; F17C2270/016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-08-03 | 1946-02-02 | 1946-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-03 | 1950-02-02 | 1950-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-03 | 1954-02-02 | 1954-08-04 | $7700.00 | Window Closed / Lapsed |