US2937129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic lubricant
Assignee: ExxonMobil Oil Corp
•
Filing: 1957-09-13
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Granted: 1960-05-17
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Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 Garwood William Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:16
CPC Classifications
C; C10; C10M; C10M107/00; C10M107/02; C10M107/10; C08; C08F; C08F10/00; C10M105/00; C10M105/02; C10M105/04; C10M2203/00; C10M2203/02; C10M2203/0206; C10M2205/00; C10M2205/02; C10M2205/028; C10M2205/0285; C10N; C10N2020/00; C10N2020/01; C10N2020/011; C10N2020/013; C10N2020/015; C10N2020/017; C10N2020/02; C10N2020/04; C10N2020/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A SYNTHETIC LUBRICANT THAT IS PRODUCED BY CONTACTING IN A REACTION ZONE, AT A TEMPERATURE VARYING BETWEEN ABOUT 100C. AND ABOUT 200*C., A NORMAL ALPHA-MONOOLEFIN, HAVING BETWEEN ABOUT 5 AND ABOUT 14 CARBON ATOMS PER MOLECULE, INCLUIVE, WITH A DITERTIARY-ALKYL PEROXIDE CATALYST IN AN AMOUNT VARYING BETWEEN ABOUT 0.01 MOLE AND ABOUT 0.3 MOLE PER MOLE OF SAID MONOOLEFIN, SAID SYNTHETIC LUBRICANT BEING CHARACTERIZED BY A HIGH VISCOSITY INDEX, A RELATIVELY LOW POUR POINT, AND FREEDOM FROM CHEMICALLY-COMBINED STRUCTURAL ELEMENTS OF THE CATALYST.
Claim 2
Dependent Claim
83 words
A SYNTHETIC LUBRICANT THAT IS PRODUCED BY CONTACTING IN A REACTION ZONE, AT A TEMPERATURE VARYING BETWEEN ABOUT 100C. AND ABOUT 200*C., A NORMAL ALPHA-MONOOLEFIN, HAVING BETWEEN ABOUT 5 AND ABOUT 14 CARBON ATOMS PER MOLECULE, INCLUIVE, WITH A DITERTIARY-ALKYL PEROXIDE CATALYST IN AN AMOUNT VARYING BETWEEN ABOUT 0.01 MOLE AND ABOUT 0.3 MOLE PER MOLE OF SAID MONOOLEFIN, SAID SYNTHETIC LUBRICANT BEING CHARACTERIZED BY A HIGH VISCOSITY INDEX, A RELATIVELY LOW POUR POINT, AND FREEDOM FROM CHEMICALLY-COMBINED STRUCTURAL ELEMENTS OF THE CATALYST.
References Cited (Backward Citations)
US2450451A
Cited
US2551638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |