US4388081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuel
Assignee: Phillips Petroleum Co
•
Filing: 1982-06-29
•
Granted: 1983-06-14
•
Expires: 2002-06-29
Abstract
Abstract Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising phenoxyalcohols.
Inventors
- 👤 Lyle D. Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:16
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
32 words
A fuel composition comprising a hydrocarbon suitable as a fuel for an internal combustion engine and an antiknock improving amount ranging from about 0.5 to about 10 weight percent of a phenoxyalcohol.
Claim 2
Dependent Claim
32 words
A fuel composition comprising a hydrocarbon suitable as a fuel for an internal combustion engine and an antiknock improving amount ranging from about 0.5 to about 10 weight percent of a phenoxyalcohol.
Claim 3
Dependent Claim
12 words
A composition according to claim 1 wherein said alcohol is 2-phenoxy ethanol.
Claim 4
Dependent Claim
18 words
A composition according to claim 1 wherein said amount ranges from about 1 to about 5 wt. %.
Claim 5
Dependent Claim
24 words
A composition according to claim 1 wherein said hydrocarbon is a distillate boiling in the range of about 70° F. to about 420° F.
Claim 6
Dependent Claim
15 words
A composition according to claim 1 wherein said hydrocarbon is unleaded gasoline containing 2-phenoxy ethanol.
Claim 7
Dependent Claim
20 words
A composition according to claim 5 wherein the amount of additive ranges from about 1 to about 5 wt. %.
Claim 8
Independent Claim
47 words
A method for improving the antiknock properties of a motor fuel which comprises incorporating therein a small but effective amount ranging from about 0.5 to about 10 weight percent sufficient to impart reduced knocking tendencies to said motor fuel of an ashless antiknock additive comprising a phenoxyalcohol.
Claim 9
Independent Claim
47 words
A method for improving the antiknock properties of a motor fuel which comprises incorporating therein a small but effective amount ranging from about 0.5 to about 10 weight percent sufficient to impart reduced knocking tendencies to said motor fuel of an ashless antiknock additive comprising a phenoxyalcohol.
Claim 10
Dependent Claim
25 words
A method according to claim 7 wherein said motor fuel is unleaded and contains from about 1 to about 5 wt. % of the additive.
Claim 11
Dependent Claim
13 words
A method according to claim 7 wherein said motor fuel is unleaded gasoline.
Claim 12
Dependent Claim
12 words
A method according to claim 7 wherein said additive is 2-phenoxy ethanol.
Claim 13
Dependent Claim
22 words
A method according to claim 7 wherein said motor fuel contains from about 1 to about 5 wt. % of said alcohol.
References Cited (Backward Citations)
US2089580A
Cited
US3270497A
Cited
US3642911A
Cited
US3658494A
Cited
US4273891A
Cited
US4341905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |