US2839371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline composition
Assignee: California Research LLC
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Filing: 1954-04-08
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Granted: 1958-06-17
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Expires: 1974-04-08
Abstract
No abstract record available.
Inventors
- 👤 Harrison W Sigworth
- 👤 Eddie G Lindstrom
- 👤 Maurice R Barusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:00
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A GASOLINE COMPOSITION CAPABLE OF REDUCING DEPOSITS NORMALLY FORMED IN THE INDUCTION SYSTEM OF A APARK-INGITION ENGINE WHICH COMPRISES A MAJOR PORTION OF A HYDROCARBON BASE FUEL BOILING WITHIN THE GASOLINE BOILING RANGE HAVING INCORPORATED THEREIN A SMALL AMOUNT, SUFFICIENT TO REDUCE SAID DEPOSITS, OF A 1,2 SUBSTITUTED IMIDAZOLINE BICARBONATE IN WHICH THE 1-SUBSTITUENT IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXYETHYL AND AMINOETHYL RADICAL AND THE 2-SUBSTITUENT IS AN ACYCLIC HYDROCARBON RADICAL CONTAINING 11 TO 17 CARBON ATOMS.
Claim 2
Dependent Claim
81 words
A GASOLINE COMPOSITION CAPABLE OF REDUCING DEPOSITS NORMALLY FORMED IN THE INDUCTION SYSTEM OF A APARK-INGITION ENGINE WHICH COMPRISES A MAJOR PORTION OF A HYDROCARBON BASE FUEL BOILING WITHIN THE GASOLINE BOILING RANGE HAVING INCORPORATED THEREIN A SMALL AMOUNT, SUFFICIENT TO REDUCE SAID DEPOSITS, OF A 1,2 SUBSTITUTED IMIDAZOLINE BICARBONATE IN WHICH THE 1-SUBSTITUENT IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROXYETHYL AND AMINOETHYL RADICAL AND THE 2-SUBSTITUENT IS AN ACYCLIC HYDROCARBON RADICAL CONTAINING 11 TO 17 CARBON ATOMS.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |