US2822252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiknock compositions
Assignee: Ethyl Corp
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Filing: 1955-05-31
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Granted: 1958-02-04
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 James C Boag
- 👤 Harry R Dittmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:12
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/103; C10L1/22; C10L1/23; C10L1/231; C10L1/30; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
172 words
AN ORGANOLEAD ANTIKNOCK FLUID HAVING AS ITS PRINCIPAL ANTIKNOCK INGREDIENT AN ORGANOLEAD COMPOUND AND CONTAINING A HALOGENATED ORGANIC COMPOUND SCAVENGER WHEREIN AT LEAST ONE MOLE PRECENT OF HALOGEN IN THE SCAVENGER IS PRESENT IN THE FORM OF HALONITROHYDROCARBON COMPOUNDS HAVING 2 TO 20 CARBON ATOMS, 1 TO 6 HALOGENS AND 1 TO 3 NO2 GROUPS IN WHICH THE NO2 GROUPS ARE ATTACHED TO NON-AROMATIC CARBON ATOMS WHICH HALOGENS ARE OF ATOMIC WEIGHT 35-81, SAID NITROHALOYDROCARBON BEING FURTHER CHARACTERIZED IN THAT AT LEAST ONE HALOGEN IS ATTACHED TO A NON-AROMATIC CARBON ATOM WHICH IS NOT MORE THAN TWO CARBONS REMOVED FROM AN NO2BEARING CARBON; THE TWO TOTAL AMOUNT OF SAID HALOGENATED ORGANIC COMPOUND SCAVENGER BEING IN THE RANGE OF 0.1-4.0 THEORIES BASED ON THE AMOUNT OF ORGANOLEAD COMPOUND PRESENT AND THE TOTAL AMOUNT OF SAID HALONITRO HYDROCARBON BEING IN THE RANGE OF 0.05-3.0 THEORIES BASED ON THE AMOUNT OF SCAVENGER WHICH PROVIDES 2 ATOMS OF THAT AMOUNT OF SCAVENGER WHICH PROVIDES 2 ATOMS OF HALOGEN FOR EVERY LEAD ATOM PRESENT IN SAID FLUID.
Claim 2
Dependent Claim
172 words
AN ORGANOLEAD ANTIKNOCK FLUID HAVING AS ITS PRINCIPAL ANTIKNOCK INGREDIENT AN ORGANOLEAD COMPOUND AND CONTAINING A HALOGENATED ORGANIC COMPOUND SCAVENGER WHEREIN AT LEAST ONE MOLE PRECENT OF HALOGEN IN THE SCAVENGER IS PRESENT IN THE FORM OF HALONITROHYDROCARBON COMPOUNDS HAVING 2 TO 20 CARBON ATOMS, 1 TO 6 HALOGENS AND 1 TO 3 NO2 GROUPS IN WHICH THE NO2 GROUPS ARE ATTACHED TO NON-AROMATIC CARBON ATOMS WHICH HALOGENS ARE OF ATOMIC WEIGHT 35-81, SAID NITROHALOYDROCARBON BEING FURTHER CHARACTERIZED IN THAT AT LEAST ONE HALOGEN IS ATTACHED TO A NON-AROMATIC CARBON ATOM WHICH IS NOT MORE THAN TWO CARBONS REMOVED FROM AN NO2BEARING CARBON; THE TWO TOTAL AMOUNT OF SAID HALOGENATED ORGANIC COMPOUND SCAVENGER BEING IN THE RANGE OF 0.1-4.0 THEORIES BASED ON THE AMOUNT OF ORGANOLEAD COMPOUND PRESENT AND THE TOTAL AMOUNT OF SAID HALONITRO HYDROCARBON BEING IN THE RANGE OF 0.05-3.0 THEORIES BASED ON THE AMOUNT OF SCAVENGER WHICH PROVIDES 2 ATOMS OF THAT AMOUNT OF SCAVENGER WHICH PROVIDES 2 ATOMS OF HALOGEN FOR EVERY LEAD ATOM PRESENT IN SAID FLUID.
Claim 3
Dependent Claim
35 words
A PETROLEUM HYDROCARBON FUEL OF THE GASOLINE BOILING RANGE CONTAINING THE COMPOSITION OF CLAIM 1 IN AMOUNT SUCH THAT THE LEAD CONTENT IS BETWEEN ABOUT 0.02 AND 13.2 GRAMS OF LEAD PER GALLON OF FUEL.
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |