Patent US2999739A successfully refreshed from Google Patents.
US2999739A
Expired / Lapsed
US
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Antiknock fluids
Assignee: Ethyl Corp
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Filing: 1956-03-28
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Granted: 1961-09-12
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Expires: 1976-03-28
Abstract
No abstract record available.
Inventors
- 👤 Sam D Heron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:40
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/20; C10L1/22; C10L1/23; C10L1/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
98 words
IN AN ANTIKNOCK COMPOSITION CONSISTING ESSENTIALLY OF ORGANOLEAD MATERIAL AS THE PRINCIPAL ANTIKNOCK INGREDIENT, ORGANIC HALOGEN SCAVENGER MATERIAL SELECTED FROM THE CLASS CONSISTING OF THAT HAVING TWO ATOMS OF CHLORINE PLUS ONE ATOM OF BROMINE PER ATOM OF SAID ANTI-KNOCK LEAD, AND THAT HAVING TWO ATOMS OF BROMINE PER ATOM OF SAID ANTIKNOCK LEAD, AND A GASOLINE SOLUBLE PHOSPHORUS-CONTAINING, SPARK PLUG ANTI-FOULING COMPOUND, THE PHOSPHORUS-TO-LEAD ATOM RATIO OF SAID COMPOSITION BEING FROM ABOUT 0.02:3 TO ABOUT 0.7:3, THE IMPROVEMENT IN WHICH THE BROMINE CONTENT OF THE ORGANIC HALOGEN SCAVENGER MATERIAL IS INCREASED BY ABOUT 15 TO 20 PERCENT.
Claim 2
Dependent Claim
98 words
IN AN ANTIKNOCK COMPOSITION CONSISTING ESSENTIALLY OF ORGANOLEAD MATERIAL AS THE PRINCIPAL ANTIKNOCK INGREDIENT, ORGANIC HALOGEN SCAVENGER MATERIAL SELECTED FROM THE CLASS CONSISTING OF THAT HAVING TWO ATOMS OF CHLORINE PLUS ONE ATOM OF BROMINE PER ATOM OF SAID ANTI-KNOCK LEAD, AND THAT HAVING TWO ATOMS OF BROMINE PER ATOM OF SAID ANTIKNOCK LEAD, AND A GASOLINE SOLUBLE PHOSPHORUS-CONTAINING, SPARK PLUG ANTI-FOULING COMPOUND, THE PHOSPHORUS-TO-LEAD ATOM RATIO OF SAID COMPOSITION BEING FROM ABOUT 0.02:3 TO ABOUT 0.7:3, THE IMPROVEMENT IN WHICH THE BROMINE CONTENT OF THE ORGANIC HALOGEN SCAVENGER MATERIAL IS INCREASED BY ABOUT 15 TO 20 PERCENT.
Claim 3
Dependent Claim
28 words
A GASOLINE CONTAINING THE COMPOSITION OF CLAIM 1 IN AMOUNT SUFFICIENT TO PROVIDE EFFECTIVELY IMPROVED ANTIKNOCK, BUT NOT MORE THAN EQUIVALENT TO SIX MILLILITERS OF TETRAETHYLLEAD PER GALLON.
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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |