US3308052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High quality lube oil and/or jet fuel from waxy petroleum fractions
Assignee: Mobil Oil AS
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Filing: 1964-03-04
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Granted: 1967-03-07
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Expires: 1984-03-04
Abstract
No abstract record available.
Inventors
- 👤 Henry R Ireland
- 👤 Michael T Smilski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:52
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/58; C10G47/00; C10G73/00; C10G73/02; C10G73/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A METHOD FOR UPGRADING A WAXY HYDROCARBON MIXTURE CONTAINING LESS THAN ABOUT 50 PERCENT OF DISTILLATE OIL TO LOWER BOILING PRODUCTS COMPRISING JET FUELS AND HIGH VI LUBE OILS WHICH COMPRISES CONTACTING THE WAXY MATERIAL COMBINED WITH A HYDROGEN IN THE PRESENCE OF A HYDROISOMERIZING CATALYST UNDER HYDROISOMERIZING CONDITIONS TO OBTAIN A CONVERSION OF SAID WAXY HYDROCARBON TO PRODUCTS BOILING BELOW ABOUT 650*F. OF FROM ABOUT 25 PERCENT TO ABOUT 70 PERCENT, SEPARATING THE HYDROISOMERIZED PRODUCT UNDER CONDITIONS TO OBTAIN A JET FUEL BOILING RANGE PRODUCT AND A LIQUID PRODUCT BOILING ABOVE ABOUT 650*F., COOLING THE LIQUID PRODUCT BOILING ABOVE ABOUT 650*F. TO A TEMPERATURE BELOW ABOUT 20*F. AND RECOVERING A HIGH VISCOSITY INDEX LUBE OIL FROM THE PRODUCT OF THE COOLING STEP.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |