US3168385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuels
Assignee: ExxonMobil Oil Corp
•
Filing: 1961-07-12
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Granted: 1965-02-02
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 John J Giammaria
- 👤 Henry D Norris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:33
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/02; C10L1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A MOTOR FUEL BLEND OF FROM AOBUT 50 TO ABOUT 95% BY VOLUME OF A SATURATED ALIPHATIC HYDROCARBON BASE STOCK IN THE GASOLINE BOILING RANGE AND FROM ABOUT 5 TO ABOUT 50% OF A DIALKYL ETHER CONTAINING FROM 4 TO 10 AS THE SUM OF THE CARBON ATOMS IN THE TWO ALKYL GROUPS, CONTAINING A SMALL AMOUNT, SUFFICIENT TO INCREASE THE ANTI-KNOCK CHARACTERISTICS OF SAID BLEND, OF TETRAETHYL LEAD, AND FROM ABOUT ONE TO ABOUT FIFTY GRAMS, PER GALLON OF SAID BLEND AND SUFFICIENT TO APPRECIATE THE OCTANE NUMBER OF SAID BLEND CONTAINING THE TETRAETHYL LEAD, OF A TERTIARY C4 TO C8 ALKYL ESTER OF A C2 TO C8 ORGANIC MONOCARBOXYLIC HYDROCARBON ACID.
Claim 2
Dependent Claim
113 words
A MOTOR FUEL BLEND OF FROM AOBUT 50 TO ABOUT 95% BY VOLUME OF A SATURATED ALIPHATIC HYDROCARBON BASE STOCK IN THE GASOLINE BOILING RANGE AND FROM ABOUT 5 TO ABOUT 50% OF A DIALKYL ETHER CONTAINING FROM 4 TO 10 AS THE SUM OF THE CARBON ATOMS IN THE TWO ALKYL GROUPS, CONTAINING A SMALL AMOUNT, SUFFICIENT TO INCREASE THE ANTI-KNOCK CHARACTERISTICS OF SAID BLEND, OF TETRAETHYL LEAD, AND FROM ABOUT ONE TO ABOUT FIFTY GRAMS, PER GALLON OF SAID BLEND AND SUFFICIENT TO APPRECIATE THE OCTANE NUMBER OF SAID BLEND CONTAINING THE TETRAETHYL LEAD, OF A TERTIARY C4 TO C8 ALKYL ESTER OF A C2 TO C8 ORGANIC MONOCARBOXYLIC HYDROCARBON ACID.
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |