Patent US2537482A successfully refreshed from Google Patents.
Patent US2838918A successfully refreshed from Google Patents.
US2838918A
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Process for the partial liquefaction of gas mixture by means of pressure and intense cooling
Assignee: Linde GmbH
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Filing: 1954-07-27
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Granted: 1958-06-17
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Expires: 1974-07-27
Abstract
No abstract record available.
Inventors
- 👤 Becker Rudolf
- 👤 Hartmann Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04375; F25J3/04393; F25J3/04284; F25J3/0429; F25J3/04763; F25J3/04866; F25J3/04975; F25J2205/00; F25J2205/02; F25J2205/04; F25J2205/24; F25J2215/00; F25J2215/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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US2617275A
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US2619810A
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US2709348A
Cited
US2699047A
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Cited
US2712738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |