Patent US4244704A successfully refreshed from Google Patents.
US4244704A
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Gasoline composition
Assignee: Texaco Inc
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Filing: 1980-01-04
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Granted: 1981-01-13
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Expires: 2000-01-04
Abstract
Abstract Substantial increase in octane number of a gasoline is attained by addition of eq. 2 vol. % phenyl t-butyl ether.
Inventors
- 👤 William M. Sweeney
- 👤 Francis S. Bove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:20
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
24 words
A gasoline composition characterized by improved octane number which comprises a major portion of gasoline and a minor, octane-improving, portion of phenyl t-butyl ether.
Claim 2
Dependent Claim
24 words
A gasoline composition characterized by improved octane number which comprises a major portion of gasoline and a minor, octane-improving, portion of phenyl t-butyl ether.
Claim 3
Dependent Claim
22 words
A gasoline composition as claimed in claim 1 wherein, said octane-improving portion of phenyl t-butyl ether is 1-10 vol% of said gasoline.
Claim 4
Dependent Claim
23 words
A gasoline composition as claimed in claim 1 wherein, said octane-improving portion of phenyl t-butyl ether is about 2 vol% of said gasoline.
Claim 5
Independent Claim
28 words
The method of treating a gasoline to improve its octane number which comprises adding, to a major portion of gasoline, a minor, octane-improving, portion of phenyl t-butyl ether.
Claim 6
Independent Claim
28 words
The method of treating a gasoline to improve its octane number which comprises adding, to a major portion of gasoline, a minor, octane-improving, portion of phenyl t-butyl ether.
Claim 7
Independent Claim
27 words
The method of treating a gasoline to improve its octane number which comprises adding to gasoline, phenyl t-butyl ether in amount of 1-10 vol% of said gasoline.
Claim 8
Independent Claim
27 words
The method of treating a gasoline to improve its octane number which comprises adding to gasoline, phenyl t-butyl ether in amount of 1-10 vol% of said gasoline.
Claim 9
Independent Claim
28 words
The method of treating a gasoline to improve its octane number which comprises adding to gasoline, phenyl t-butyl ether in amount of about 2 vol% of said gasoline.
Claim 10
Independent Claim
28 words
The method of treating a gasoline to improve its octane number which comprises adding to gasoline, phenyl t-butyl ether in amount of about 2 vol% of said gasoline.
References Cited (Backward Citations)
US3019094A
Cited
US2952612A
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US3224848A
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US3168385A
Cited
US3717611A
Cited
US4182913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |