US3326804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oleaginous compositions containing sludge dispersants
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-10-01
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Granted: 1967-06-20
•
Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Roselle Shih-En Hu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08F; C08F291/00; C08F291/18; C08F291/185; C08F8/00; C08F8/06; C08F8/30; C08F8/32; C08F8/44; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C08F2810/00; C08F2810/20; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN OLEAGINOUS COMPOSITION COMPRISING AN OIL SELECTED FROM THE GROUP CONSISTING OF GASOLINE, MIDDLE DISTILLATE FUEL AND LUBRICATING OIL AND BETWEEN ABOUT 0.002 AND ABOUT 10 WT. PERCENT OF AN OIL-SOLUBLE NITROGEN CONTAINING GRAFT POLYMER PREPARED BY HYDROPEROXIDIZING A POLYMER COMPRISED OF ETHYLENE AND AT LEAST ONE OTHER ALPHA-OLEFIN, SAID POLYMER CONTAINING FROM ABOUT 20% TO ABOUT 75% BY WEIGHT OF ETHYLENE AND FROM ABOUT 25% TO ABOUT 80% BY WEIGHT OF ALPHA-OLEFIN, GRAFTING ONTO SAID HYDROPEROXIDIZED POLYMER AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND REACTING SAID GRAFT POLYMER WITH A POLYALKYLENE POLYAMINE.
Claim 2
Dependent Claim
92 words
AN OLEAGINOUS COMPOSITION COMPRISING AN OIL SELECTED FROM THE GROUP CONSISTING OF GASOLINE, MIDDLE DISTILLATE FUEL AND LUBRICATING OIL AND BETWEEN ABOUT 0.002 AND ABOUT 10 WT. PERCENT OF AN OIL-SOLUBLE NITROGEN CONTAINING GRAFT POLYMER PREPARED BY HYDROPEROXIDIZING A POLYMER COMPRISED OF ETHYLENE AND AT LEAST ONE OTHER ALPHA-OLEFIN, SAID POLYMER CONTAINING FROM ABOUT 20% TO ABOUT 75% BY WEIGHT OF ETHYLENE AND FROM ABOUT 25% TO ABOUT 80% BY WEIGHT OF ALPHA-OLEFIN, GRAFTING ONTO SAID HYDROPEROXIDIZED POLYMER AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND REACTING SAID GRAFT POLYMER WITH A POLYALKYLENE POLYAMINE.
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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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |