US3130161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil and anti-wear additives therefor
Assignee: Shell USA Inc
•
Filing: 1959-11-02
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Granted: 1964-04-21
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Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Henricus G P Van Der Voort
- 👤 Krukziener Maurits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:41
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C08; C08F; C08F8/00; C08F8/30; C08G; C08G73/00; C08G73/02; C08G81/00; C08G81/02; C08G81/024; C10; C10M; C10M159/00; C10M159/12; C10M2207/00; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/026; C10M2217/028; C10M2217/04; C10M2217/046; C10M2217/06; C10M2221/00; C10M2221/02; C10M2225/00; C10M2225/02; C10N; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN IMPROVED MINERAL LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF MINERAL LUBRICATING OIL AND FROM ABOUT 0.5% TO ABOUT 5% BY WEIGHT OF AN OILSOLUBLE REACTION PRODUCT OF A POLYMERIZED 1,2-ALKYLENE IMINE HAVING FROM 5 TO 150 IMINE UNITS WITH A POLYMER OF A MONO-OLEFINIC MONOMER CONTAINING AN ACIDIC POLAR GROUP SELECTED FROM THE CARBOXYL AND HYDROXYL GROUPS AND AN OLEOPHILIC HYDROCARBYL GROUP OF FROM 8 TO 18 CARBON ATOMS, SAID REACTION PRODUCT HAVING A MOLECULAR WEIGHT OF FROM 1000 TO 500,000.
Claim 2
Dependent Claim
83 words
AN IMPROVED MINERAL LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF MINERAL LUBRICATING OIL AND FROM ABOUT 0.5% TO ABOUT 5% BY WEIGHT OF AN OILSOLUBLE REACTION PRODUCT OF A POLYMERIZED 1,2-ALKYLENE IMINE HAVING FROM 5 TO 150 IMINE UNITS WITH A POLYMER OF A MONO-OLEFINIC MONOMER CONTAINING AN ACIDIC POLAR GROUP SELECTED FROM THE CARBOXYL AND HYDROXYL GROUPS AND AN OLEOPHILIC HYDROCARBYL GROUP OF FROM 8 TO 18 CARBON ATOMS, SAID REACTION PRODUCT HAVING A MOLECULAR WEIGHT OF FROM 1000 TO 500,000.
References Cited (Backward Citations)
US2296225A
Cited
GB466270A
Cited
US2440800A
Cited
US2628941A
Cited
GB760554A
Cited
US2870129A
Cited
US2839512A
Cited
US2892788A
Cited
US2889282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |