Patent US2725339A successfully refreshed from Google Patents.
US2725339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid caustic treatment of hydrocarbons
Assignee: ExxonMobil Oil Corp
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Filing: 1951-12-26
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Granted: 1955-11-29
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Expires: 1971-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Lewis M Browning
- 👤 Raymond M Kauffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:19
CPC Classifications
C; C10; C10G; C10G19/00; C10G19/073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF REMOVING MERCAPTANS FROM GASOLINE WHICH COMPRISES ADDING ABOUT 3 TO ABOUT 10 GALLONS OF AN ALIPHATIC MONO-HYDRIC ALCOHOL HAVING NOT MORE THAN FIVE CARBON ATOMS PER MOLECULE PER 100 POUNDS OF ALKALI METAL HYDROXIDE TO A SUSPENSION OF PARTICLES OF ALKALI METAL HYDROXIDE HAVING DIAMETER OF ABOUT 1 TO ABOUT 40 MICRONS IN A NON-AQUEOUS LIQUID, BOILING THE RESULTING SUSPENSION REMOVE SAID ALCOHOL AND OBTAIN A SUSPENSION OF ACTIVATED PARTICLES OF SOLID ALKALI METAL HYDROXIDE, CONTACTING SAID SUSPENSION OF ACTIVATED PARTICLES OF ALKALI METAL HYDROXIDE WITH GASOLINE CONTAINING MERCAPTANS, AND SEPARATING TREATED GASOLINE FROM PARTICLES OF SOLID ALKALI METAL HYDROXIDE.
Claim 2
Independent Claim
103 words
A METHOD OF REMOVING MERCAPTANS FROM GASOLINE WHICH COMPRISES ADDING ABOUT 3 TO ABOUT 10 GALLONS OF AN ALIPHATIC MONO-HYDRIC ALCOHOL HAVING NOT MORE THAN FIVE CARBON ATOMS PER MOLECULE PER 100 POUNDS OF ALKALI METAL HYDROXIDE TO A SUSPENSION OF PARTICLES OF ALKALI METAL HYDROXIDE HAVING DIAMETER OF ABOUT 1 TO ABOUT 40 MICRONS IN A NON-AQUEOUS LIQUID, BOILING THE RESULTING SUSPENSION REMOVE SAID ALCOHOL AND OBTAIN A SUSPENSION OF ACTIVATED PARTICLES OF SOLID ALKALI METAL HYDROXIDE, CONTACTING SAID SUSPENSION OF ACTIVATED PARTICLES OF ALKALI METAL HYDROXIDE WITH GASOLINE CONTAINING MERCAPTANS, AND SEPARATING TREATED GASOLINE FROM PARTICLES OF SOLID ALKALI METAL HYDROXIDE.
References Cited (Backward Citations)
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Cited
US1970583A
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US2578602A
Cited
US2538287A
Cited
US2596175A
Cited
US2546345A
Cited
US2641572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |