US2651594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kerosene finishing process
Assignee: Standard Oil Development Co
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Filing: 1949-05-26
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Granted: 1953-09-08
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Expires: 1969-05-26
Abstract
No abstract record available.
Inventors
- 👤 Leo J Blatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/08; C10G21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE PROCESS FOR PROVIDING A KEROSENE OF SATISFACTORY BURNING QUALITY DERIVED FROM A MIDDLE EAST CRUDE OIL HAVING A SULFUR CONTENT OF 1.4% OR GREATER, COMPRISING THE STEPS OF CONTACTING SAID KEROSENE IN LIQUID PHASE WITH ABOUT 25% TO 100% BY VOLUME OF SULFUR DIOXIDE AT A TEMPEATURE OF ABOUT -40 TO +25* F., AND A PRESSURE OF ABOUT 0 TO 100 P.S.I. TO OBTAIN A RAFFINATE PRODUCT CHARACTERIZED BY A WICK CHAR VALUE GREATER THAN ABOUT 10, AND THEREAFTER CONTACTING THE SAID RAFFINATE
Claim 2
Dependent Claim
84 words
THE PROCESS FOR PROVIDING A KEROSENE OF SATISFACTORY BURNING QUALITY DERIVED FROM A MIDDLE EAST CRUDE OIL HAVING A SULFUR CONTENT OF 1.4% OR GREATER, COMPRISING THE STEPS OF CONTACTING SAID KEROSENE IN LIQUID PHASE WITH ABOUT 25% TO 100% BY VOLUME OF SULFUR DIOXIDE AT A TEMPEATURE OF ABOUT -40 TO +25* F., AND A PRESSURE OF ABOUT 0 TO 100 P.S.I. TO OBTAIN A RAFFINATE PRODUCT CHARACTERIZED BY A WICK CHAR VALUE GREATER THAN ABOUT 10, AND THEREAFTER CONTACTING THE SAID RAFFINATE
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) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |