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Patent US3630904A successfully refreshed from Google Patents.
US3630904A
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Lubricating oils and fuels containing acylated nitrogen additives
Assignee: Lubrizol Corp
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Filing: 1969-11-10
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Granted: 1971-12-28
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Expires: 1989-11-10
Abstract
Abstract COMPOSITIONS OF MATTER PARTICULARLY USEFUL AS LUBRICANT AND FUEL ADDITIVES PREPARED BY REACTING VARIOUS NITROGENCONTAINING REACTANTS WITH A MONO-OR POLYCARBOXYLIC ACID ACYLATING AGENT CONTAINING AT LEAST ABOUT THIRTY ALIPHATIC CARBON ATOMS. THE NITROGEN-CONTAINING REACTANTS ARE CHARACTERIZED BY THE PRESENCE OF AT LEAST ONE N-SUBSTITUENT CORRESPONDING TO WHERE R IS 1-10 AND R'''' IS HYDROCARBYLENE OF UP TO 10 CARBON ATOMS. AN EXEMPLARY COMPOSITION IS ONE PREPARED BY REACTING POLYISOBUTENYL SUCCINIC ANHYDRIDE WITH THE REACTION PRODUCT OF N-(HYDROXYETHYL)-ETHYLENE DIAMINE AND ADIPIC ACID.
Inventors
- 👤 Jerry L Musser
- 👤 Edward J Friihauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/18; C07; C07D; C07D247/00; C07D247/02; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; C10M; C10M133/00; C10M133/52; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2203/102; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2205/14; C10M2205/16; C10M2205/17; C10M2205/173; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/302; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2211/00; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/06; C10M2223/061; C10M2223/063; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/02; C10M2227/04; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/20; C10N2040/25; C10N2040/255; C10N2040/26; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |