US3220949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil compositions containing iodine and ashless nitrogen-containing oil-soluble derivatives of alkenyl succinic anhydride
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-03-13
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Granted: 1965-11-30
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Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles E Bell
- 👤 Zaybekian Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:16
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2201/00; C10M2201/04; C10M2205/00; C10M2205/20; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL, 0.0001 TO 0.99 WT. PERCENT IODINE AS A FRICTION REDUCING AGENT, SAID COMPOSITION HAVING A TENDENCY TO CORRODE IRON DUE TO THE PRESENCE OF SAID IODINE, AND ABOUT 0.1 TO 10 WT. PERCENT OF AN OILSOLUBLE ASHLESS NITROGEN CONTAINING DERIVATIVE OF ALKENYL SUCCINIC ANHYDRIDE CONTAINING A TOTAL OF 40 TO 250 CARBON ATOMS IN SAID ALKENYL GROUP, WHEREIN SAID DERIVATIVE HAS THE ABILITY TO INHIBIT SAID TENDENCY TO CORRODE IRON AND IS SELECTED FROM THE GROUP CONSISTING OF: (1) DIAMIDES OF SAID ALKENYL SUCCINIC ANHYDRIDE, HAVING THE FORMULA:
Claim 2
Dependent Claim
98 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL, 0.0001 TO 0.99 WT. PERCENT IODINE AS A FRICTION REDUCING AGENT, SAID COMPOSITION HAVING A TENDENCY TO CORRODE IRON DUE TO THE PRESENCE OF SAID IODINE, AND ABOUT 0.1 TO 10 WT. PERCENT OF AN OILSOLUBLE ASHLESS NITROGEN CONTAINING DERIVATIVE OF ALKENYL SUCCINIC ANHYDRIDE CONTAINING A TOTAL OF 40 TO 250 CARBON ATOMS IN SAID ALKENYL GROUP, WHEREIN SAID DERIVATIVE HAS THE ABILITY TO INHIBIT SAID TENDENCY TO CORRODE IRON AND IS SELECTED FROM THE GROUP CONSISTING OF: (1) DIAMIDES OF SAID ALKENYL SUCCINIC ANHYDRIDE, HAVING THE FORMULA:
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |