US2815827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of gases
Assignee: Sunoco Inc
•
Filing: 1956-06-18
•
Granted: 1957-12-10
•
Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 James L Jezl
- 👤 Arthur T Polishuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11; B; B01; B01D; B01D53/00; B01D53/14; B01D53/1487; B01D53/1493
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
PROCESS FOR SEPARATING ETHYLENE FROM ETHANE WHICH COMPRISES CONTACTING A GASEOUS MIXTURE CONTAINING ETHANE AND ETHYLENE WITH LIQUID ALKYLENE OXIDE HAVING 2 TO 4 CARBON ATOMS AT A PRESSURE OF AT LEAST 200 P.S.I.A., AND RECOVERING A LIQUID ALKYLENE OXIDE PHASE ENRICHED IN ETHANE AND AN UNDISSOLVED GAS PHASE ENRICHED IN ETHYLENE.
Claim 2
Dependent Claim
52 words
PROCESS FOR SEPARATING ETHYLENE FROM ETHANE WHICH COMPRISES CONTACTING A GASEOUS MIXTURE CONTAINING ETHANE AND ETHYLENE WITH LIQUID ALKYLENE OXIDE HAVING 2 TO 4 CARBON ATOMS AT A PRESSURE OF AT LEAST 200 P.S.I.A., AND RECOVERING A LIQUID ALKYLENE OXIDE PHASE ENRICHED IN ETHANE AND AN UNDISSOLVED GAS PHASE ENRICHED IN ETHYLENE.
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |