US3687644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline compositions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1970-05-28
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Granted: 1972-08-29
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Expires: 1990-05-28
Abstract
Abstract GASOLINE COMPOSITION CONTAINING AS ANTI-ICING ADDITIVES 0.0001% TO 0.02% BY WEIGHT OF A MONO- OR POLYCARBOXYLIC ACID, OR AN ANHYDRIDE, ESTER, AMIDE, IMIDE THEREOF; AND 0.01% TO 5% BY WEIGHT OF AN ALCOHOL, GLYCOL OR POLYOL. OPTIONALLY, AN ESTER OF AN ALKOXYLATED PHENOL-ALDEHYDE RESIN IS ALSO PRESENT. CONCENTRATES OF THESE ADDITIVES ARE DESCRIBED.
Inventors
- 👤 David J Delafield
- 👤 Alan H Edwards
- 👤 Keith Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:53
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/18; C10L1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |