Patent US2629685A successfully refreshed from Google Patents.
US2629685A
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Aviation fuel and method of preparing same
Assignee: Standard Oil Development Co
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Filing: 1949-10-29
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Granted: 1953-02-24
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Expires: 1969-10-29
Abstract
No abstract record available.
Inventors
- 👤 William E Lifson
- 👤 William E Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:19
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN IMPROVED AVIATION FUEL CONSISTING ESSENTIALLY OF AN AVIATION GASOLINE BASE STOCK SATISFYING AN-F-48B SPECIFICATIONS, CONTAINING ABOUT 0.5 TO 1% BY VOLUME OF AN AROMATIC EXTRACT OF KEROSENE HAVING A 50% DISTILLATION TEMPERATURE ABOVE ABOUT 400* F., AND A FINAL BOILING POINT BELOW ABOUT 575* F., AND HAVING A KAURI-BUTANOL SOLVENT VALUE ABOVE ABOUT 70.
Claim 2
Dependent Claim
55 words
AN IMPROVED AVIATION FUEL CONSISTING ESSENTIALLY OF AN AVIATION GASOLINE BASE STOCK SATISFYING AN-F-48B SPECIFICATIONS, CONTAINING ABOUT 0.5 TO 1% BY VOLUME OF AN AROMATIC EXTRACT OF KEROSENE HAVING A 50% DISTILLATION TEMPERATURE ABOVE ABOUT 400* F., AND A FINAL BOILING POINT BELOW ABOUT 575* F., AND HAVING A KAURI-BUTANOL SOLVENT VALUE ABOVE ABOUT 70.
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) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |