US3701640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition
Assignee: Atlantic Richfield Co
•
Filing: 1971-11-05
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Granted: 1972-10-31
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Expires: 1991-11-05
Abstract
Abstract A HYDROCARBON GASOLINE COMPOSITION CONTAINING, AS AN ADDITIVE, A MINOR AMOUNT, SUFFICIENT TO IMPROVE THE DETERGENCY OF SAID GASOLINE, OF THE REACTION PRODUCT OF: (A) A MONOCARBOXYLIC ACID OR DERIVATIVE THEREOF; (B) A POLYAMINE HAVING AT LEAST THREE NITROGEN ATOMS, AT LEAST TWO PRIMARY AND AT LEAST ONE SECONDARY; (C) AN ALKYL-SUBSTITUTED PHENOL; AND (D) FORMALDEHYDE; A PREFERRED REACTION PRODUCT CONTAINS 4,7,10-TRIS(2-HYDROXY-5-ALKYL) BENZYLTERTRAETHYLENEPENTAMINE-1,13 PALMITIC ACID DIAMIDE.
Inventors
- 👤 Charles A Lease
- 👤 Seymour H Patinkin
- 👤 Frank J Chloupek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:53
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; C08; C08F; C08F8/00
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |