US2582443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separation of hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1947-05-31
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Granted: 1952-01-15
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Expires: 1967-05-31
Abstract
No abstract record available.
Inventors
- 👤 Carl B Linn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:36
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A PROCESS FOR REMOVING ETHANE FROM A MIXTURE OF C2 HYDROCARBONS CONTAINING ACETYLENE WHICH COMPRISES CONTACTING SAID MIXTURE WITH A LIQUEFIED PARAFFINIC SOLVENT CONTAINING FROM 3 TO 6 CARBON ATOMS PER MOLECULE AT A SUPERATMOSPHERIC PRESSURE OF AT LEAST ABOUT 10 ATMOSPHERES AND AT A TEMPERATURE BELOW THE CRITICAL TEMPERATURE OF SAID PARAFFINIC SOLVENT TO THEREBY EFFECT SELECTIVE ABSORPTION OF SAID ETHANE IN SAID SOLVENT AND SEPARATING THE RESULTING LIQUID PHASE CONTAINING
References Cited (Backward Citations)
US2038834A
Cited
US2035409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |