Patent US4294587A successfully refreshed from Google Patents.
US4294587A
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Motor fuel
Assignee: Phillips Petroleum Co
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Filing: 1980-10-24
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Granted: 1981-10-13
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Expires: 2000-10-24
Abstract
Abstract Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected N-allylic aromatic amines.
Inventors
- 👤 Lyle D. Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:02
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/10; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
46 words
An internal combustion fuel composition comprising a major proportion of a motor fuel containing a small but effective amount, sufficient to impart reduced knocking tendencies to said motor fuel, of an ashless antiknock additive selected from the group consisting of N-methallylaniline (I), N-allyl-o-toluidine (II), and N-crotyl-p-toluidine.
Claim 2
Dependent Claim
46 words
An internal combustion fuel composition comprising a major proportion of a motor fuel containing a small but effective amount, sufficient to impart reduced knocking tendencies to said motor fuel, of an ashless antiknock additive selected from the group consisting of N-methallylaniline (I), N-allyl-o-toluidine (II), and N-crotyl-p-toluidine.
Claim 3
Dependent Claim
22 words
A composition according to claim 1 wherein the motor fuel contains from about 0.5 to about 10 weight percent of said additives.
Claim 4
Dependent Claim
27 words
A composition according to claim 1 wherein the motor fuel is a distillate boiling in the range of about 70° F. to about 420° F. (21.1°-216° C.).
Claim 5
Dependent Claim
24 words
A gasoline composition containing an antiknock quantity of at least one member of the group consisting of N-methallylaniline (I), N-allyl-o-toluidine (II), and N-crotyl-p-toluidine (III).
Claim 6
Dependent Claim
24 words
A gasoline composition containing an antiknock quantity of at least one member of the group consisting of N-methallylaniline (I), N-allyl-o-toluidine (II), and N-crotyl-p-toluidine (III).
Claim 7
Dependent Claim
19 words
The composition of claim 4 containing from about 0.5 to about 10 percent by weight of the antiknock compound.
Claim 8
Dependent Claim
19 words
The composition of claim 4 containing from about 1 to about 5 percent by weight of the antiknock compound.
Claim 9
Dependent Claim
11 words
A composition according to claim 4 wherein said additive is N-methallylaniline.
Claim 10
Dependent Claim
11 words
A composition according to claim 4 wherein said additive is N-allyl-o-toluidine.
Claim 11
Dependent Claim
11 words
A composition according to claim 4 wherein said additive is N-crotyl-p-toluidine.
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) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |