US2889378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of acetylene from fluorinecontaining mono-olefins
Assignee: Honeywell International Inc
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Filing: 1957-03-11
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Granted: 1959-06-02
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Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 Heinz G Boettger
- 👤 William C Ruch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:07
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C7/00; C07C7/148; C07C7/14833; C07C7/14841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE PROCESS FOR SEPARATING ACETYLENE FROM A GAS COMPRISING HALOGENATED MONO-OLEFINE CONTAINING TWO CARBON ATOMS, AT LEASZT ONE FLUORINE ATOM, AND BEING FREE OF ELEMENTS OTHER THAN CARBON, HYDROGEN, CHLORINE AND FLUORINE, SAID GAS CONTAINING A RELATIVELY SMALL AMOUNT OF C2H2 AS IMPURITY, WHICH PROCESS COMPRISES SUBJECTING SAID GAS TO THE ACTION OF SOLID OXIDIZED METALLIC COPPER, AT TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 150-500* C. AND BELOW THE TEMPERATURE AT WHICH OLEFINIC MATERIAL PRESENT SIGNIFICANTLY DECOMPOSES, FOR A PERIOD OF TIME SUFFICIENT TO EFFECT REMOVAL OF A SUBSTANTIAL AMOUNT OF C2H2 FROM SAID GAS, AND RECOVERING HALOGENATED MONO-OLEFINE HAVING A SUBSTANTIALLY REDUCED AMOUNT OF C2H2 ASSOCIATED THEREWITH.
Claim 2
Dependent Claim
108 words
THE PROCESS FOR SEPARATING ACETYLENE FROM A GAS COMPRISING HALOGENATED MONO-OLEFINE CONTAINING TWO CARBON ATOMS, AT LEASZT ONE FLUORINE ATOM, AND BEING FREE OF ELEMENTS OTHER THAN CARBON, HYDROGEN, CHLORINE AND FLUORINE, SAID GAS CONTAINING A RELATIVELY SMALL AMOUNT OF C2H2 AS IMPURITY, WHICH PROCESS COMPRISES SUBJECTING SAID GAS TO THE ACTION OF SOLID OXIDIZED METALLIC COPPER, AT TEMPERATURE SUBSTANTIALLY IN THE RANGE OF 150-500* C. AND BELOW THE TEMPERATURE AT WHICH OLEFINIC MATERIAL PRESENT SIGNIFICANTLY DECOMPOSES, FOR A PERIOD OF TIME SUFFICIENT TO EFFECT REMOVAL OF A SUBSTANTIAL AMOUNT OF C2H2 FROM SAID GAS, AND RECOVERING HALOGENATED MONO-OLEFINE HAVING A SUBSTANTIALLY REDUCED AMOUNT OF C2H2 ASSOCIATED THEREWITH.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |