US3573010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid salts of polyisobutenyl alkylene polyamines as fuel detergents
Assignee: Chevron USA Inc
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Filing: 1968-08-29
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Granted: 1971-03-30
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Expires: 1988-08-29
Abstract
Abstract MINERAL ACID SALTS OF HYDROCARBYL SUBSTITUTED POLYAMINES, WHICH ARE SUBSTANTIALLY FREE OF AROMATIC UNSATURATION AND OF FROM ABOUT 460 TO 10,000 MOLECULAR WEIGHT, FIND USE AS DETERGENTS IN FUELS, PARTICULARLY IN COMBINATION WITH A SMALL AMOUNT OF OIL.
Inventors
- 👤 Enver Mehmedbasich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:10
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |