Patent US3288714A successfully refreshed from Google Patents.
US3288714A
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Lubricating oil compositions containing alkenyl succinic anhydrides
Assignee: Monsanto Co
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Filing: 1965-01-14
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Granted: 1966-11-29
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Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Osuch Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:24
CPC Classifications
C; C10; C10M; C10M129/00; C10M129/86; C10M129/92; C10M129/93; C08; C08F; C08F8/00; C08F8/46; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A COMPOSITION COMPRISING A LUBRICATING OIL AND FROM ABOUT 0.05% TO ABOUT 25% BY WEIGHT OF ALKENYL SUCCINIC ANHYDRIDES WHEREIN THE ALKENYL GROUP HAS A MOLECULAR WEIGHT OF FROM ABOUT 900 TO ABOUT 200 AND IS A POLYMER OF A LOWER ALKENE.
Claim 2
Dependent Claim
42 words
A COMPOSITION COMPRISING A LUBRICATING OIL AND FROM ABOUT 0.05% TO ABOUT 25% BY WEIGHT OF ALKENYL SUCCINIC ANHYDRIDES WHEREIN THE ALKENYL GROUP HAS A MOLECULAR WEIGHT OF FROM ABOUT 900 TO ABOUT 200 AND IS A POLYMER OF A LOWER ALKENE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |