US3071912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas separation systems
Assignee: Eastman Kodak Co
•
Filing: 1960-09-28
•
Granted: 1963-01-08
•
Expires: 1980-09-28
Abstract
No abstract record available.
Inventors
- 👤 George A Akin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:02
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; C07; C07C; C07C7/00; C07C7/005; C07C7/11; C07C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD FOR RECOVERING HIGH PURITY ACETYLENE FROM A GAS FEED MIXTURE CONTAINING ACETYLENE AND OTHER GASEOUS HYDROCARBONS WHICH COMPRISES THE STEPS OF CONTACTING SAID MIXTURE WITH A LIQUID ABSORPTION MEDIUM WHICH IS SELECTIVE FOR ACETYLENE IN AN ABSORPTION ZONE AND SELECTIVELY ABSORBING A SUBSTANTIAL PART OF THE ACETYLENE FROM SAID MIXTURE, PASSING EFFLUENT ACETYLENE-LEAN GAS FROM THE SELECTIVE ABSORPTION ZONE INTO CONTACT WITH A SOLID ADSORBENT IN AN ADSORPTION ZONE, ADSORBING ACETYLENE FROM
Claim 2
Independent Claim
74 words
A METHOD FOR RECOVERING HIGH PURITY ACETYLENE FROM A GAS FEED MIXTURE CONTAINING ACETYLENE AND OTHER GASEOUS HYDROCARBONS WHICH COMPRISES THE STEPS OF CONTACTING SAID MIXTURE WITH A LIQUID ABSORPTION MEDIUM WHICH IS SELECTIVE FOR ACETYLENE IN AN ABSORPTION ZONE AND SELECTIVELY ABSORBING A SUBSTANTIAL PART OF THE ACETYLENE FROM SAID MIXTURE, PASSING EFFLUENT ACETYLENE-LEAN GAS FROM THE SELECTIVE ABSORPTION ZONE INTO CONTACT WITH A SOLID ADSORBENT IN AN ADSORPTION ZONE, ADSORBING ACETYLENE FROM
References Cited (Backward Citations)
US1894763A
Cited
US2325577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |