US2834662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline fuels
Assignee: Ethyl Corp
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Filing: 1953-05-28
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Granted: 1958-05-13
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Expires: 1973-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Daniel A Hirschler
- 👤 James B Hinkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/103; C10L1/14; C10L1/18; C10L1/1814; C10L1/182; C10L1/1828; C10L1/188; C10L1/30; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
GASOLINE CONTAINING AN ANTIKNOCK QUANTITY OF A HYDROCARBON LEAD ANTIKNOCK AGENT, SAID QUANTITY BEING UP TO ABOUT 6.34 GRAMS OF LEAD PER GALLON OF SAID GASOLINE, AND A GASOLINE-SOLUBLE, SULFUR-FREE ORGANIC MAGNESIUM COMPOUND CONTAINING ONLY THE ELEMENTS MAGNESIUM, CARBON, HYDROGEN AND OXYGEN, THE MAGNESIUM BEING BONDED TO THE ORGANIC PORTION OF THE MOLECULE THROUGH OXYGEN, SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF (A) MAGNESIUM SALTS OF (1) SATURATED MONOBASIC HYDROCARBOALIPHATIC CARBOXYLIC ACIDS, (2) MONOBASIC UNSATURATED ALIPHATIC CARBOXYLIC ACIDS, (3) DIBASIC ALIPHATIC ACIDS, (4) POLYBASIC ALIPHATIC ACIDS, (5) AROMATIC CARBOXYLIC ACIDS, (6) NAPHTHENIC ACIDS, (7) ROSIN ACIDS, (8) MONOHYDRIC PHENOLS, (9) POLYHYDRIC PHENOLS; SAID ACIDS AND SAID PHENOLS CONTAINING UP TO ABOUT 30 CARBON ATOMS IN THE MOLECULE; (B) MAGNESIUM ALCOHOLATES MADE FORM ALCOHOLS CONTAINING FROM ABOUT 10 TO ABOUT 30 CARBON ATOMS IN THE MOLECULE, AND (C) MAGNESIUM CHELATES MADE FROM BIDENTATE CHELATING AGENTS WHICH CONTAIN ONE ACIDIC GROUP AND ONE COORDINATING GROUP AND WHICH CONTAIN UP TO ABOUT 20 CARBON ATOMS IN THE MOLECULE: SAID COMPOUND BEING PRESENT IN AMOUNT SUCH THAT THE MAGNESIUM-TO-LEAD ATOM RATIO IS BETWEEN ABOUT 0.001 TO 1 AND ABOUT 4 TO 1.
Claim 2
Dependent Claim
190 words
GASOLINE CONTAINING AN ANTIKNOCK QUANTITY OF A HYDROCARBON LEAD ANTIKNOCK AGENT, SAID QUANTITY BEING UP TO ABOUT 6.34 GRAMS OF LEAD PER GALLON OF SAID GASOLINE, AND A GASOLINE-SOLUBLE, SULFUR-FREE ORGANIC MAGNESIUM COMPOUND CONTAINING ONLY THE ELEMENTS MAGNESIUM, CARBON, HYDROGEN AND OXYGEN, THE MAGNESIUM BEING BONDED TO THE ORGANIC PORTION OF THE MOLECULE THROUGH OXYGEN, SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF (A) MAGNESIUM SALTS OF (1) SATURATED MONOBASIC HYDROCARBOALIPHATIC CARBOXYLIC ACIDS, (2) MONOBASIC UNSATURATED ALIPHATIC CARBOXYLIC ACIDS, (3) DIBASIC ALIPHATIC ACIDS, (4) POLYBASIC ALIPHATIC ACIDS, (5) AROMATIC CARBOXYLIC ACIDS, (6) NAPHTHENIC ACIDS, (7) ROSIN ACIDS, (8) MONOHYDRIC PHENOLS, (9) POLYHYDRIC PHENOLS; SAID ACIDS AND SAID PHENOLS CONTAINING UP TO ABOUT 30 CARBON ATOMS IN THE MOLECULE; (B) MAGNESIUM ALCOHOLATES MADE FORM ALCOHOLS CONTAINING FROM ABOUT 10 TO ABOUT 30 CARBON ATOMS IN THE MOLECULE, AND (C) MAGNESIUM CHELATES MADE FROM BIDENTATE CHELATING AGENTS WHICH CONTAIN ONE ACIDIC GROUP AND ONE COORDINATING GROUP AND WHICH CONTAIN UP TO ABOUT 20 CARBON ATOMS IN THE MOLECULE: SAID COMPOUND BEING PRESENT IN AMOUNT SUCH THAT THE MAGNESIUM-TO-LEAD ATOM RATIO IS BETWEEN ABOUT 0.001 TO 1 AND ABOUT 4 TO 1.
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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |