US3325971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rejuvenating an adsorbent
Assignee: Chevron USA Inc
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Filing: 1963-12-20
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Granted: 1967-06-20
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Rosman Aristides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:53
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/02; C07; C07C; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE IMPROVED PROCESS OF RECOVERING NATURAL GASOLINE FROM A NATURAL GAS FEED CONTAINING NATURAL GASOLINE USING AN ABSORBENT TO ADSORB THEREON SAID NATURAL GASOLINE, THE ADSORPTION OF SAID NATURAL GASOLINE ON SAID ADSORBENT INCREASING THROUGH A MAXIMUM AND THEN DECREASING AS THE PRESSURE IS INCREASED WHICH COMPRISES PASSING SAID FEED OVER SAID ADSORBENT TO ADSORB THEREON SAID NATURAL GASOLINE COMPONENTS FROM SAID FEED, CONTINUING SAID ADSORBING STEP UNTIL A SUBSTANTIAL AMOUNT OF NATURAL GASOLINE COMPONENTS HAVE BEEN ADSORBED AND THEREAFTER DESORBING SAID NATURAL GASOLINE COMPONENTS BY PASSING GAS OVER SAID ADSORBENT AT A PRESSURE WHICH IS GREATER THAN THE HIGHER OF THE TWO PRESSURES AT WHICH THE ADSORPTION IS THE SAME AS IN SAID ADSORBING STEP.
Claim 2
Dependent Claim
116 words
THE IMPROVED PROCESS OF RECOVERING NATURAL GASOLINE FROM A NATURAL GAS FEED CONTAINING NATURAL GASOLINE USING AN ABSORBENT TO ADSORB THEREON SAID NATURAL GASOLINE, THE ADSORPTION OF SAID NATURAL GASOLINE ON SAID ADSORBENT INCREASING THROUGH A MAXIMUM AND THEN DECREASING AS THE PRESSURE IS INCREASED WHICH COMPRISES PASSING SAID FEED OVER SAID ADSORBENT TO ADSORB THEREON SAID NATURAL GASOLINE COMPONENTS FROM SAID FEED, CONTINUING SAID ADSORBING STEP UNTIL A SUBSTANTIAL AMOUNT OF NATURAL GASOLINE COMPONENTS HAVE BEEN ADSORBED AND THEREAFTER DESORBING SAID NATURAL GASOLINE COMPONENTS BY PASSING GAS OVER SAID ADSORBENT AT A PRESSURE WHICH IS GREATER THAN THE HIGHER OF THE TWO PRESSURES AT WHICH THE ADSORPTION IS THE SAME AS IN SAID ADSORBING STEP.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |