US3016985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovery of acetylene and ethylene
Assignee: Eastman Kodak Co
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Filing: 1959-12-28
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Granted: 1962-01-16
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 George A Akin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:33
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN A PROCESS FOR RESOLVING A GASEOUS MIXTURE CONTAINING ACETYLENE AND ETHYLENE, THE IMPROVEMENT WHICH COMPRISES ABSORBING BOTH ACETYLENE AND ETHYLENE FROM THE GASEOUS MIXTURE BY CONTACTING SAID MIXTURE WITH A LIQUID HYDROCARBON SOLVENT, REMOVING ACETYLENE FROM SAID HYDROCARBON SOLVENT BY CONTINUOUS COUNTERCURRENT EXTRACTION WITH A SELECTIVE SOLVENT WHICH IS IMMISCIBLE WITH SAID HYDROCARBON SOLVENT AND SEPARATING ACETYLENE FROM SAID SELECTIVE SOLVENT AND ETHYLENE FROM SAID HYDROCARBON SOLVENT.
Claim 2
Dependent Claim
68 words
IN A PROCESS FOR RESOLVING A GASEOUS MIXTURE CONTAINING ACETYLENE AND ETHYLENE, THE IMPROVEMENT WHICH COMPRISES ABSORBING BOTH ACETYLENE AND ETHYLENE FROM THE GASEOUS MIXTURE BY CONTACTING SAID MIXTURE WITH A LIQUID HYDROCARBON SOLVENT, REMOVING ACETYLENE FROM SAID HYDROCARBON SOLVENT BY CONTINUOUS COUNTERCURRENT EXTRACTION WITH A SELECTIVE SOLVENT WHICH IS IMMISCIBLE WITH SAID HYDROCARBON SOLVENT AND SEPARATING ACETYLENE FROM SAID SELECTIVE SOLVENT AND ETHYLENE FROM SAID HYDROCARBON SOLVENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |