US3353938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiknock compositions and motor fuels containing them
Assignee: EIDP Inc
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Filing: 1963-04-12
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Granted: 1967-11-21
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Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Edmund L Niedzielski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A MOTOR FUEL FOR SPARK IGNITION ENGINES WHICH CONSISTS ESSENTIALLY OF LIQUID HYDROCARBONS BOILING IN THE GASOLINE RANGE AND (A) A BINARY MIXTURE OF IRON AND NICKEL ANTIKNOCK COMPOUNDS IN AN AMOUNT TO PROVIDE A TOTAL OF FROM 0.1 TO ABOUT 1 GRAM OF METAL PER GALLON OF SAID FUEL, SAID BINARY MIXTURE CONSISTING ESSENTIALLY OF (A) ABOUT 85% TO ABOUT 50% BY WEIGHT OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF DICYCLOPENTADIENYL IRON AND SUBSTITUTED-DICYCLOPENTADIENYL IRON IN WHICH THE SUBSTITUENTS CONSIST OF ONE TO TWO ALKYL RADICALS OF 1 TO 2 CARBON ATOMS, AND (B) ABOUT 15% TO ABOUT 50% BY WEIGHT OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CYCLOPENTADIENYL NICKEL NITROSYL AND SUBSTITUTEDCYCLOPENTADIENYL NICKEL NITROSYL IN WHICH THE SUBSTITUENTS CONSIST OF ONE TO TWO ALKYL RADICALS OF 1 TO 2 CARBON ATOMS; (B) A TETRALOWERALKYL LEAD ANTIKNOCK COMPOUND IN AN AMOUNT TO PROVIDE FROM ABOUT 1 TO ABOUT 4.23 GRAMS OF LEAD PER GALLON OF SAID FUEL; AND (C) FROM 0.5 TO ABOUT 2.5 THEORIES, BASED ON THE METALS, OF AT LEAST 1 POLYHALOHYDROCARBON LEAD SCAVENGER.
Claim 2
Dependent Claim
183 words
A MOTOR FUEL FOR SPARK IGNITION ENGINES WHICH CONSISTS ESSENTIALLY OF LIQUID HYDROCARBONS BOILING IN THE GASOLINE RANGE AND (A) A BINARY MIXTURE OF IRON AND NICKEL ANTIKNOCK COMPOUNDS IN AN AMOUNT TO PROVIDE A TOTAL OF FROM 0.1 TO ABOUT 1 GRAM OF METAL PER GALLON OF SAID FUEL, SAID BINARY MIXTURE CONSISTING ESSENTIALLY OF (A) ABOUT 85% TO ABOUT 50% BY WEIGHT OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF DICYCLOPENTADIENYL IRON AND SUBSTITUTED-DICYCLOPENTADIENYL IRON IN WHICH THE SUBSTITUENTS CONSIST OF ONE TO TWO ALKYL RADICALS OF 1 TO 2 CARBON ATOMS, AND (B) ABOUT 15% TO ABOUT 50% BY WEIGHT OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CYCLOPENTADIENYL NICKEL NITROSYL AND SUBSTITUTEDCYCLOPENTADIENYL NICKEL NITROSYL IN WHICH THE SUBSTITUENTS CONSIST OF ONE TO TWO ALKYL RADICALS OF 1 TO 2 CARBON ATOMS; (B) A TETRALOWERALKYL LEAD ANTIKNOCK COMPOUND IN AN AMOUNT TO PROVIDE FROM ABOUT 1 TO ABOUT 4.23 GRAMS OF LEAD PER GALLON OF SAID FUEL; AND (C) FROM 0.5 TO ABOUT 2.5 THEORIES, BASED ON THE METALS, OF AT LEAST 1 POLYHALOHYDROCARBON LEAD SCAVENGER.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |