Patent US2180086A successfully refreshed from Google Patents.
Patent US2579886A successfully refreshed from Google Patents.
Patent US5835856A successfully refreshed from Google Patents.
Patent US1834783A successfully refreshed from Google Patents.
Patent US3631086A successfully refreshed from Google Patents.
Patent US2113390A successfully refreshed from Google Patents.
Patent US2380386A successfully refreshed from Google Patents.
Patent US1412341A successfully refreshed from Google Patents.
Patent US2136844A successfully refreshed from Google Patents.
Patent US4295861A successfully refreshed from Google Patents.
US4295861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuel
Assignee: Phillips Petroleum Co
•
Filing: 1980-10-24
•
Granted: 1981-10-20
•
Expires: 2000-10-24
Abstract
Abstract Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected N-substituted amine derivatives of 3-hydroxypyridine compounds.
Inventors
- 👤 Lyle D. Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:58
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/10; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
51 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 2-(dimethylaminomethyl)-3-hydroxypyridine (I), 2-(diethylaminomethyl)-3-hydroxypyridine (II), 2-(pyrolidinomethyl)-3-hydroxypyridine (III), 2-(piperidinomethyl)-3-hydroxypyridine (IV), and 2-(morpholinomethyl)-3-hydroxypyridine (V).
Claim 2
Dependent Claim
51 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 2-(dimethylaminomethyl)-3-hydroxypyridine (I), 2-(diethylaminomethyl)-3-hydroxypyridine (II), 2-(pyrolidinomethyl)-3-hydroxypyridine (III), 2-(piperidinomethyl)-3-hydroxypyridine (IV), and 2-(morpholinomethyl)-3-hydroxypyridine (V).
Claim 3
Dependent Claim
24 words
A composition according to claim 1 wherein the motor fuel contains from about 0.1 weight percent to saturated at 20° C. 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
30 words
A gasoline composition containing an antiknock quantity of at least one ashless antiknock additive of the group consisting of 2-(dimethylaminomethyl)-3-hydroxypyridine (I), 2-(diethylaminomethyl)-3-hydroxypyridine (II), 2-(pyrolidinomethyl)-3-hydroxypyridine (III), 2-(piperidinomethyl)-3-hydroxypyridine (IV), and 2-(morpholinomethyl)-3-hydroxypyridine (V).
Claim 6
Dependent Claim
30 words
A gasoline composition containing an antiknock quantity of at least one ashless antiknock additive of the group consisting of 2-(dimethylaminomethyl)-3-hydroxypyridine (I), 2-(diethylaminomethyl)-3-hydroxypyridine (II), 2-(pyrolidinomethyl)-3-hydroxypyridine (III), 2-(piperidinomethyl)-3-hydroxypyridine (IV), and 2-(morpholinomethyl)-3-hydroxypyridine (V).
Claim 7
Dependent Claim
20 words
The composition of claim 4 containing from about 0.1 weight percent to saturated at 20° C. of the antiknock additive.
Claim 8
Dependent Claim
20 words
The composition of claim 4 containing from about 1 weight percent to saturated at 20° C. of the antiknock additive.
Claim 9
Dependent Claim
12 words
A composition according to claim 4 wherein said additive is 2-(dimethylaminomethyl)-3-hydroxypyridine (I).
Claim 10
Dependent Claim
12 words
A composition according to claim 4 wherein said additive is 2-(diethylaminomethyl)-3-hydroxypyridine (II).
Claim 11
Dependent Claim
12 words
A composition according to claim 4 wherein said additive is 2-(pyrolidinomethyl)-3-hydroxypyridine (III).
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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |