US4141693A
Expired / Lapsed
US
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Manganese containing fuels
Assignee: Standard Oil Co
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Filing: 1974-12-18
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Granted: 1979-02-27
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Expires: 1994-12-18
Abstract
Abstract The invention is gasoline containing an added manganese compound to improve the octane rating of the gasoline and including a small amount of an additive selected from a group consisting of a monocarboxylic acid or its ester, a dicarboxylic acid or its monoester or diester, an alkylamine, phenol, a substituted phenol or mixture thereof.
Inventors
- 👤 Daniel W. Feldman
- 👤 James W. Sprague
- 👤 Franklin Veatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/10; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/183; C10L1/1832; C10L1/188; C10L1/19; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
Gasoline containing an added gasoline soluble manganese compound to improve the octane rating of the gasoline and including an additive having less than 20 carbon atoms and being selected from the group consisting of a monocarboxylic acid or its ester, a dicarboxylic acid or its monoester or diester, an alkylamine, phenol, a substituted phenol of less than 10 carbon atoms or mixture thereof, in a weight ratio of manganese compound to the additive of from 50:1 to 1:5.
Claim 2
Dependent Claim
78 words
Gasoline containing an added gasoline soluble manganese compound to improve the octane rating of the gasoline and including an additive having less than 20 carbon atoms and being selected from the group consisting of a monocarboxylic acid or its ester, a dicarboxylic acid or its monoester or diester, an alkylamine, phenol, a substituted phenol of less than 10 carbon atoms or mixture thereof, in a weight ratio of manganese compound to the additive of from 50:1 to 1:5.
Claim 3
Dependent Claim
14 words
The gasoline of claim 1 wherein the additive has less than 10 carbon atoms.
Claim 4
Dependent Claim
11 words
The gasoline of claim 1 wherein the additive is acetic acid.
Claim 5
Dependent Claim
14 words
The gasoline of claim 1 wherein the additive is an ester of acetic acid.
Claim 6
Dependent Claim
11 words
The gasoline of claim 1 wherein the additive is a monoalkylamine.
Claim 7
Dependent Claim
10 words
The gasoline of claim 1 wherein the additive is phenol.
Claim 8
Dependent Claim
17 words
The gasoline of claim 1 containing less than 3 grams of the additive per gallon of gasoline.
Claim 9
Dependent Claim
14 words
The gasoline of claim 1 wherein the added manganese compound is methylcyclopentadienyl manganese tricarbonyl.
Claim 10
Dependent Claim
66 words
An additive package for gasoline comprising a gasoline soluble manganese compound to improve the octane rating of the gasoline and an additive selected from the group consisting of a monocarboxylic acid or its ester, a dicarboxylic acid or its monoester or diester, an alkylamine, phenol, a substituted phenol or mixture thereof, wherein the weight ratio of manganese compound to the additive is from 50:1 to 1:5.
Claim 11
Dependent Claim
66 words
An additive package for gasoline comprising a gasoline soluble manganese compound to improve the octane rating of the gasoline and an additive selected from the group consisting of a monocarboxylic acid or its ester, a dicarboxylic acid or its monoester or diester, an alkylamine, phenol, a substituted phenol or mixture thereof, wherein the weight ratio of manganese compound to the additive is from 50:1 to 1:5.
Claim 12
Dependent Claim
17 words
The gasoline of claim 1 wherein the additive is an alkylphenol of less than 10 carbon atoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |