US3783131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calcium-containing dispersions and process
Assignee: Lubrizol Corp
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Filing: 1972-06-29
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Granted: 1974-01-01
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Expires: 1992-06-29
Abstract
Abstract PROCESS FOR PREPARING CALCIUM DISPERSIONS IN ESSENTIAL INERT DILUENTS BY CONTACTING A BASICALLY REACTING CALCIUM COMPOUND WITH AN ORGANIC ACIDIC MATERIAL IN THE PREENCE OF A STABILIZING AGENT AND PROMOTER. A TYPICAL PROCESS COMPRISES CARBONATING A MIXTURE OF CALCIUM HYDROXIDE LOWER NITROALKANE, ALKANOL, AND THE REACTION PRODUCT OF POLYISOBUTENYL-SUBSTITUTED-SUCCINIC ANHYDRIDE AND AN ALKYL ENE POLYAMINE. THE CALCIUM-CONTAINING DISPERSIONS THE PRODUCED ARE USEFUL AS ADDITIVES FOR FUELS AND LUBRICANT
Inventors
- 👤 Le Suer W M
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:55
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C07C; C07C255/00; C07F; C07F3/00; C07F3/003; C08; C08F; C08F8/00; C08F8/42; C10; C10L; C10L1/00; C10L1/10; C10L1/106; C10L10/00; C10L10/02; C10L10/04; C10M; C10M133/00; C10M133/52; C10M133/56; C10M159/00; C10M159/12; C10M159/20; C10M159/22; C10L1/12; C10L1/1233; C10L1/14; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2201/085; C10M2201/087; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/124; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/144; C10M2207/146; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/283; C10M2207/287; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/044; C10M2215/06; C10M2215/062; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/10; C10M2215/102; C10M2215/12; C10M2215/14; C10M2215/18; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/028; C10M2217/04; C10M2217/044; C10M2217/045; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/08; C10N2010/12; C10N2010/14; C10N2030/00; C10N2030/08
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |