US2626893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aviation fuel blending agent and method for producing same
Assignee: Standard Oil Development Co
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Filing: 1949-03-28
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Granted: 1953-01-27
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Expires: 1969-03-28
Abstract
No abstract record available.
Inventors
- 👤 Morris R Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD FOR OBTAINING AN AVIATION FUEL BLENDING AGENT OF IMPROVED ANTI-KNOCK QUALITIES WHICH COMPRISES FORMING A FIRST FRACTION BOILING IN THE RANGE BETWEEN 200* AND 250* F. AND CONSISTING SUBSTANTIALLY OF A MAJOR AMOUNT OF AROMATIC AND PARAFFINIC HYDROCARBONS, SAID AROMATIC HYDROCARBONS BEING IN EXCESS OF SAID PARAFFINIC HYDROCARBONS, AND MINOR AMOUNTS OF NAPHTHENIC AND OLEFINIC HYDROCARBONS, SAID NAPHTHENIC HYDROCARBONS BEING IN EXCESS OF SAID OLEFINIC HYDROCARBONS, AND DISTILLING SAID FIRST FRACTION UNDER SUITABLE CONDITIONS TO OBTAIN A SECOND FRACTION BOILING IN THE RANGE BETWEEN 220* AND 245* F. HAVING AN I.M.E.P. OF 242 AND CONSISTING OF AN AMOUNT OF AROMATIC HYDROCARBONS IN THE RANGE BETWEEN 60% AND 80% BY VOLUME AND THE REMAINDER PREDOMINANTLY PARAFINIC HYDROCARBONS, SAID REMAINDER HAVING AN I.M.E.P. OF AT LEAST 128 ON ADDITION THERETO OF 4CC. OF TETRAETHYL LEAD PER GALLON SUITABLE FOR USE IN AVIATION FUELS.
Claim 2
Independent Claim
143 words
A METHOD FOR OBTAINING AN AVIATION FUEL BLENDING AGENT OF IMPROVED ANTI-KNOCK QUALITIES WHICH COMPRISES FORMING A FIRST FRACTION BOILING IN THE RANGE BETWEEN 200* AND 250* F. AND CONSISTING SUBSTANTIALLY OF A MAJOR AMOUNT OF AROMATIC AND PARAFFINIC HYDROCARBONS, SAID AROMATIC HYDROCARBONS BEING IN EXCESS OF SAID PARAFFINIC HYDROCARBONS, AND MINOR AMOUNTS OF NAPHTHENIC AND OLEFINIC HYDROCARBONS, SAID NAPHTHENIC HYDROCARBONS BEING IN EXCESS OF SAID OLEFINIC HYDROCARBONS, AND DISTILLING SAID FIRST FRACTION UNDER SUITABLE CONDITIONS TO OBTAIN A SECOND FRACTION BOILING IN THE RANGE BETWEEN 220* AND 245* F. HAVING AN I.M.E.P. OF 242 AND CONSISTING OF AN AMOUNT OF AROMATIC HYDROCARBONS IN THE RANGE BETWEEN 60% AND 80% BY VOLUME AND THE REMAINDER PREDOMINANTLY PARAFINIC HYDROCARBONS, SAID REMAINDER HAVING AN I.M.E.P. OF AT LEAST 128 ON ADDITION THERETO OF 4CC. OF TETRAETHYL LEAD PER GALLON SUITABLE FOR USE IN AVIATION FUELS.
References Cited (Backward Citations)
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US2401983A
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US2404902A
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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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |