Patent EP0230029A2 successfully refreshed from Google Patents.
US3149178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerized olefin synthetic lubricants
Assignee: ExxonMobil Oil Corp
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Filing: 1961-07-11
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Granted: 1964-09-15
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Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 Lyle A Hamilton
- 👤 Francis M Seger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:38
CPC Classifications
C; C10; C10M; C10M3/00; C08; C08F; C08F10/00; C10G; C10G50/00; C10G50/02; C10G69/00; C10G69/02; C10G69/12; C10G69/126; C10G2400/00; C10G2400/10; C10M2205/00; C10M2205/02; C10M2205/028; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/066; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR PRODUCING A SYNTHETIC LUBRICANT THAT COMPRISES DISTILLING A LIQUID POLYMERIZED NORMAL ALPHAMONOLEFIN SYNTHETIC LUBRICANT, THEREBY OBTAINING A FRACTION CONTTAINING DIMER AND A RESIDUAL FRACTION ESSENTIALLY FREE FROM DIMER, AND COMPLETELY SATURATING SAID RESIDUAL FRACTION OF HYDROGENATION UNDER CATALYTIC HYDROGENATION CONDITIONS; SAID NORMAL ALPHA-MONOOLEFIN HAVING BETWEEN ABOUT 6 CARBON ATOMS AND ABOUT 12 CARBON ATOMS AND HAVING A MEAN CHAIN LENGTH OF ABOUT 10 CARBON ATOMS.
Claim 2
Dependent Claim
68 words
A PROCESS FOR PRODUCING A SYNTHETIC LUBRICANT THAT COMPRISES DISTILLING A LIQUID POLYMERIZED NORMAL ALPHAMONOLEFIN SYNTHETIC LUBRICANT, THEREBY OBTAINING A FRACTION CONTTAINING DIMER AND A RESIDUAL FRACTION ESSENTIALLY FREE FROM DIMER, AND COMPLETELY SATURATING SAID RESIDUAL FRACTION OF HYDROGENATION UNDER CATALYTIC HYDROGENATION CONDITIONS; SAID NORMAL ALPHA-MONOOLEFIN HAVING BETWEEN ABOUT 6 CARBON ATOMS AND ABOUT 12 CARBON ATOMS AND HAVING A MEAN CHAIN LENGTH OF ABOUT 10 CARBON ATOMS.
References Cited (Backward Citations)
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |