US3389087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant containing ethylene-alpha-olefin polymers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-12-23
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Granted: 1968-06-18
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Edward N Kresge
- 👤 Wagensommer Joseph
- 👤 Jacobson Norman
- 👤 Darrell W Brownawell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:15
CPC Classifications
C; C10; C10M; C10M143/00; C10M143/02; C08; C08F; C08F210/00; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/10; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2221/00; C10M2221/04; C10M2221/041; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL AND FROM ABOUT 0.1 TO ABOUT 10 WT. PERCENT OF AN OIL-SOLUBLE, AMORPHOUS-CRYSTALLINE POLYMER COMPRISED OF 2-98 WT. PERCENT ETHYLENE AND 2-98 WT. PERCENT OF A C3-C16 ALPHA-OLEFIN, SAID POLYMER HAVING A MOLECULAR WEIGHT WITHIN THE RANGE BETWEEN ABOUT 20,000 AND 25,000, A DEGREE OF HEAD-TO-HEAD LINKAGES WITHIN THE RANGE BETWEEN ABOUT 20% AND 60% AND A DEGREE OF CRYSTALLINITY UP TO ABOUT 25%.
Claim 2
Dependent Claim
75 words
AN OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A LUBRICATING OIL AND FROM ABOUT 0.1 TO ABOUT 10 WT. PERCENT OF AN OIL-SOLUBLE, AMORPHOUS-CRYSTALLINE POLYMER COMPRISED OF 2-98 WT. PERCENT ETHYLENE AND 2-98 WT. PERCENT OF A C3-C16 ALPHA-OLEFIN, SAID POLYMER HAVING A MOLECULAR WEIGHT WITHIN THE RANGE BETWEEN ABOUT 20,000 AND 25,000, A DEGREE OF HEAD-TO-HEAD LINKAGES WITHIN THE RANGE BETWEEN ABOUT 20% AND 60% AND A DEGREE OF CRYSTALLINITY UP TO ABOUT 25%.
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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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |