US2769752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline preparation
Assignee: ExxonMobil Oil Corp
•
Filing: 1953-05-29
•
Granted: 1956-11-06
•
Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Louis P Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:23
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C10G; C10G21/00; C10G21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE PROCESS FOR PREPARING A GASOLINE BLENDING STOCK HAVING AN OCTANE VALUE ABOVE ABOUT 80, WHICH COMPRISES; CONTACTING A HYDROCARBON FRACTION CONTAINING AT LEAST ABOUT 22% BY VOLUME OF AROMATIC HYDROCARBONS, WHICH BOIL PREDOINANTLY IN THE RANGE OF ABOUT 170* F. TO ABOUT 400* F., AND CONTAINING OTHER HYDROCARBON TYPES, WITH A SELECTIVE NON-AQUEOUS SOLVENT HAVING A PREFERENTIAL SELECTIVELY FOR AROMATIC HYDROCARBONS, WHEREUPON AN EXTRACT PHASE COMPRISING SOLVENT AND AROMATIC HYDROCARBON CARBONS AND A RAFFINATE PHASE COMPRISING SAID OTHER HYDROCARBONS AND SOLVENT ARE FORMED; SEPARATING SAID EXTRACT AND RAFFINATE PHASES; CONTACTING SAID EXTRACT PHASE WITH A PARAFFINIC ALKYLATE HAVING A BOILING RANGE FROM HYDROCARBONS ARE DISASSOCIATED FROM SAID EXTRACT PHASE ABOUT 170* F. TO ABOUT 400* F., WHEREBY SAID AROMATIC AND ASSOCIATED WITH SAID PARAFFINC ALKYLATE TO FORM SAID GASOLINE BLENDING STOCK.
Claim 2
Dependent Claim
132 words
THE PROCESS FOR PREPARING A GASOLINE BLENDING STOCK HAVING AN OCTANE VALUE ABOVE ABOUT 80, WHICH COMPRISES; CONTACTING A HYDROCARBON FRACTION CONTAINING AT LEAST ABOUT 22% BY VOLUME OF AROMATIC HYDROCARBONS, WHICH BOIL PREDOINANTLY IN THE RANGE OF ABOUT 170* F. TO ABOUT 400* F., AND CONTAINING OTHER HYDROCARBON TYPES, WITH A SELECTIVE NON-AQUEOUS SOLVENT HAVING A PREFERENTIAL SELECTIVELY FOR AROMATIC HYDROCARBONS, WHEREUPON AN EXTRACT PHASE COMPRISING SOLVENT AND AROMATIC HYDROCARBON CARBONS AND A RAFFINATE PHASE COMPRISING SAID OTHER HYDROCARBONS AND SOLVENT ARE FORMED; SEPARATING SAID EXTRACT AND RAFFINATE PHASES; CONTACTING SAID EXTRACT PHASE WITH A PARAFFINIC ALKYLATE HAVING A BOILING RANGE FROM HYDROCARBONS ARE DISASSOCIATED FROM SAID EXTRACT PHASE ABOUT 170* F. TO ABOUT 400* F., WHEREBY SAID AROMATIC AND ASSOCIATED WITH SAID PARAFFINC ALKYLATE TO FORM SAID GASOLINE BLENDING STOCK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |