US3078644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for adsorbing and separating unsaturated aliphatic hydrocarbons
Assignee: Union Carbide Corp
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Filing: 1960-01-19
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Granted: 1963-02-26
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Expires: 1980-01-19
Abstract
No abstract record available.
Inventors
- 👤 Robert M Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR SEPARATING UNSATURATED ALIPHATIC HYDROCARBONS CONTAINING LESS THAN FIVE CARBON ATOMS PER MOLECULE FROM A VAPOR MIXTURE CONTAINING SUCH UNSATURATED ALIPHATIC HYDROCARBONS AND AT LEAST ONE NORMAL SATURATED ALIPHATIC HYDROCARBON HAVING LESS THAN FOUR CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING SAID VAPOR MIXTURE WITH A BED OF AT LEAST PARTIALLY DEHYDRATED CRYSTALLINE ZEOLITE X ADSORBENT MATERIAL, AND THEREAFTER DISCHARGING THE UNSATURATED ALIPHATIC HYDROCARBON DEPLETED VAPOR STREAM FROM SAID BED.
Claim 2
Dependent Claim
72 words
A PROCESS FOR SEPARATING UNSATURATED ALIPHATIC HYDROCARBONS CONTAINING LESS THAN FIVE CARBON ATOMS PER MOLECULE FROM A VAPOR MIXTURE CONTAINING SUCH UNSATURATED ALIPHATIC HYDROCARBONS AND AT LEAST ONE NORMAL SATURATED ALIPHATIC HYDROCARBON HAVING LESS THAN FOUR CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING SAID VAPOR MIXTURE WITH A BED OF AT LEAST PARTIALLY DEHYDRATED CRYSTALLINE ZEOLITE X ADSORBENT MATERIAL, AND THEREAFTER DISCHARGING THE UNSATURATED ALIPHATIC HYDROCARBON DEPLETED VAPOR STREAM FROM SAID BED.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |