Patent US3421867A successfully refreshed from Google Patents.
US3421867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saturated aliphatic hydrocarbon gasoline
Assignee: Texaco Inc
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Filing: 1966-03-03
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Granted: 1969-01-14
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Robert Y Heisler
- 👤 Kenneth L Dille
- 👤 Marc F Fontaine
- 👤 George W Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:23
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/02; G02B21/025; C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1857; C10L1/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A HYDORCARBON FUEL IN THE GASOLINE BOILING RANGE CONSISTING ESSENTIALLY OF SATURATED ALIPHATIC HYDROCARBONS HAVING A MINIMUM RESEARCH OCTANE NUMBER WITH 3CC. OF TETRAETHYL LEAD PER GALLON OF 102, SAID FUEL CONTAINING AN ORGANO-LEAD ANTI-KNOCK AGENT IN A CONCENTRATION OF AT LEAST 0.5 CC. PER GALLON AND 0.1 TO 2.0 VOLUME PERCENT OF AN OXYGENATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF T-ALKYL ESTERS OF A HYDROCARBYL MONOCARBOXYLIC ACID, SAID MONOCARBOXYLIC ACIDS CONTAINING FROM 1 TO 30 CARBON ATOMS, SAID CONCENTRATION OF SAID OXYGENATED HYDROCARBONS EFFECTING A SUBSTANTIAL IMPROVEMENT IN THE RESEARCH OCTANE NUMBER OF SAID SATURATED ALIPHATIC HYDROCARBON FUEL.
Claim 2
Dependent Claim
100 words
A HYDORCARBON FUEL IN THE GASOLINE BOILING RANGE CONSISTING ESSENTIALLY OF SATURATED ALIPHATIC HYDROCARBONS HAVING A MINIMUM RESEARCH OCTANE NUMBER WITH 3CC. OF TETRAETHYL LEAD PER GALLON OF 102, SAID FUEL CONTAINING AN ORGANO-LEAD ANTI-KNOCK AGENT IN A CONCENTRATION OF AT LEAST 0.5 CC. PER GALLON AND 0.1 TO 2.0 VOLUME PERCENT OF AN OXYGENATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF T-ALKYL ESTERS OF A HYDROCARBYL MONOCARBOXYLIC ACID, SAID MONOCARBOXYLIC ACIDS CONTAINING FROM 1 TO 30 CARBON ATOMS, SAID CONCENTRATION OF SAID OXYGENATED HYDROCARBONS EFFECTING A SUBSTANTIAL IMPROVEMENT IN THE RESEARCH OCTANE NUMBER OF SAID SATURATED ALIPHATIC HYDROCARBON FUEL.
References Cited (Backward Citations)
GB202264A
Cited
US1692784A
Cited
FR640311A
Cited
GB277326A
Cited
US2210942A
Cited
FR837965A
Cited
US2228662A
Cited
US2360585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |