US2743280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic lubricants
Assignee: ExxonMobil Oil Corp
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Filing: 1951-08-30
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Granted: 1956-04-24
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Expires: 1971-08-30
Abstract
No abstract record available.
Inventors
- 👤 Charles F Feasley
- 👤 William E Garwood
- 👤 Alexander N Sachanen
- 👤 Francis M Seger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:26
CPC Classifications
C; C10; C10M; C10M3/00; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/044; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/144; C10M2207/146; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/106; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN OIL OF LUBRICATING VISCOSITY OBTAINED BY: CONDENSING, AT A TEMPERATURE BETWEEN ABOUT 80* C. AND 140* C. FOR A PERIOD OF TIME BETWEEN ABOUT FIVE HOURS AND TEN HOURS, ONE MOLAR PROPORTION OF AN ALPHA-MONO OLEFIN HAVING FROM 8 TO 18 CARBON ATOMS PER MOLECULE WITH ONE MOLAR PROPORTION OF THIOPHENE AND WITH 0.1 MOLAR PROPORTION OF AN ORGANIC PEROXIDE SELECTED FROM THE GROUP CONSISTING OF TERTIARY BUTYL PEROXIDE AND BENZOYL PEROXIDE, AND SEPARATING SAID OIL FROM THE REACTION PRODUCT THUS FORMED.
Claim 2
Dependent Claim
83 words
AN OIL OF LUBRICATING VISCOSITY OBTAINED BY: CONDENSING, AT A TEMPERATURE BETWEEN ABOUT 80* C. AND 140* C. FOR A PERIOD OF TIME BETWEEN ABOUT FIVE HOURS AND TEN HOURS, ONE MOLAR PROPORTION OF AN ALPHA-MONO OLEFIN HAVING FROM 8 TO 18 CARBON ATOMS PER MOLECULE WITH ONE MOLAR PROPORTION OF THIOPHENE AND WITH 0.1 MOLAR PROPORTION OF AN ORGANIC PEROXIDE SELECTED FROM THE GROUP CONSISTING OF TERTIARY BUTYL PEROXIDE AND BENZOYL PEROXIDE, AND SEPARATING SAID OIL FROM THE REACTION PRODUCT THUS FORMED.
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) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |