US2995427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline composition
Assignee: California Research LLC
•
Filing: 1956-12-19
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Granted: 1961-08-08
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Expires: 1976-12-19
Abstract
No abstract record available.
Inventors
- 👤 Harrison W Sigworth
- 👤 Maurice R Barusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:27
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/22; C10L1/222; C10L1/224; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
AN ADDITIVE CONCENTRATE CAPABLE OF INCORPORATION INTO GASOLINE SUITABLE FOR USE AS A FUEL IN SPARK-IGNITION INTERNAL COMBUSTION ENGINES, SAID CONCENTRATE CONSISTING ESSENTIALLY OF METHANOL, AND, BASED ON THE VOLUME OF METHANOL, FROM ABOUT 1.0 TO ABOUT 4.0 VOLUME PERCENT OF AN OLEIC ACID AMIDE OF HYDROXYETHYL ETHYLENE DIAMINE, AND FROM ABOUT 0.25 TO ABOUT 1.0 VOLUME PERCENT OF AN OIL-SOLUBLE AMMONIUM SALT OF SULPHONIC ACID CHARACTERIZED BY THE PRESENCE OF AN ESSENTIALLY HYDROCARBON ORGANIC RADICAL AND HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOVE ABOUT 400 TO ABOUT 800.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |