Patent JPS5940348A successfully refreshed from Google Patents.
US3133126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic hydrocarbon separation
Assignee: Union Oil Company of California
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Filing: 1960-09-12
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Granted: 1964-05-12
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond N Fleck
- 👤 Carlyle G Wight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:04
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE PROCESS FOR TREATING A FLUID HYDROCARBON MIXTURE COMPRISING AT LEAST TWO ISOMERIC ALKYL-SUBSTITUTED MAPHTHALENES IN WHICH THE ALKYL SUBSTITUENTS CONTAIN FROM 1 TO 4 CARBON ATOMS, WHICH PROCESS COMPRISES: CONTACTING SAID HYDROCARBON MIXTURE WITH A SOLID GRANULAR ADSORBENT CONSISTING ESSENTIALLY OF A PARTIALLY DEHYDRATED ZEOLITIC METALLO ALUMINO SILICATE HAVING PORES OF SUBSTANTIALLY UNIFORM DIAMETER BETWEEN ABOUT 7 A. AND ABOUT 13 A., WHEREBY THERE IS OBTAINED A FLUID RAFFINATE PHASE COMPRISING NON-ADSORBED COMPONENTS OF SAID MIXTURE AND A SOLID RICH ADSORBENT CONTAINING ADSORBED COMPONENTS OF SAID MIXTURE, THE RATIO OF SAID ISOMERS IN SAID FLUID RAFFINATE PHASE BEING DIFFERENT FROM THE RATIO OF SAID ISOMERS IN SAID HYDROCARBON MIXTURE.
Claim 2
Dependent Claim
110 words
THE PROCESS FOR TREATING A FLUID HYDROCARBON MIXTURE COMPRISING AT LEAST TWO ISOMERIC ALKYL-SUBSTITUTED MAPHTHALENES IN WHICH THE ALKYL SUBSTITUENTS CONTAIN FROM 1 TO 4 CARBON ATOMS, WHICH PROCESS COMPRISES: CONTACTING SAID HYDROCARBON MIXTURE WITH A SOLID GRANULAR ADSORBENT CONSISTING ESSENTIALLY OF A PARTIALLY DEHYDRATED ZEOLITIC METALLO ALUMINO SILICATE HAVING PORES OF SUBSTANTIALLY UNIFORM DIAMETER BETWEEN ABOUT 7 A. AND ABOUT 13 A., WHEREBY THERE IS OBTAINED A FLUID RAFFINATE PHASE COMPRISING NON-ADSORBED COMPONENTS OF SAID MIXTURE AND A SOLID RICH ADSORBENT CONTAINING ADSORBED COMPONENTS OF SAID MIXTURE, THE RATIO OF SAID ISOMERS IN SAID FLUID RAFFINATE PHASE BEING DIFFERENT FROM THE RATIO OF SAID ISOMERS IN SAID HYDROCARBON MIXTURE.
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |