US2993343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for handling liquefied gas mixtures
Assignee: Phillips Petroleum Co
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Filing: 1957-06-28
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Granted: 1961-07-25
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Expires: 1977-06-28
Abstract
No abstract record available.
Inventors
- 👤 George R Benz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:00
CPC Classifications
F; F17; F17C; F17C7/00; F17C7/02; F17C7/04; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0338; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2225/00; F17C2225/01; F17C2225/0107; F17C2225/0123; F17C2227/00; F17C2227/03; F17C2227/0367; F17C2227/0388; F17C2227/0393; F17C2250/00; F17C2250/06; F17C2250/0605; F17C2250/0626
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2346112A
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US2705872A
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US2651921A
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US2747374A
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US2729948A
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US2855759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |