US3322848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of lubricating oils
Assignee: Mobil Oil AS
•
Filing: 1962-08-20
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Granted: 1967-05-30
•
Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 William E Garwood
- 👤 Claude G Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:53
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD FOR MANUFACTURING LUBRICATING OILS HAVING A HIGH VISCOSITY INDEX AND LOW POUR POINTS FROM A NORMAL ALPHA MONO-OLEFIN HAVING BETWEEN 10 AND 18 CARBON ATOMS PER MOLECULE, WHICH COMPRISES HEATING SAID MONOOLEFIN AT A TEMPERATURE IN THE RANGE FROM ABOUT 350*F. TO ABOUT 590*F. IN THE PRESENCE OF A CRYSTALLINE ALUMINOSILICATE WHICH HAS UNIFORM PORE OPENINGS IN EXCESS OF 6 ANGSTROM UNITS AND HAS AN ALKALI METAL CONTENT BELOW ABOUT 2 WEIGHT PERCENT.
Claim 2
Independent Claim
75 words
A METHOD FOR MANUFACTURING LUBRICATING OILS HAVING A HIGH VISCOSITY INDEX AND LOW POUR POINTS FROM A NORMAL ALPHA MONO-OLEFIN HAVING BETWEEN 10 AND 18 CARBON ATOMS PER MOLECULE, WHICH COMPRISES HEATING SAID MONOOLEFIN AT A TEMPERATURE IN THE RANGE FROM ABOUT 350*F. TO ABOUT 590*F. IN THE PRESENCE OF A CRYSTALLINE ALUMINOSILICATE WHICH HAS UNIFORM PORE OPENINGS IN EXCESS OF 6 ANGSTROM UNITS AND HAS AN ALKALI METAL CONTENT BELOW ABOUT 2 WEIGHT PERCENT.
References Cited (Backward Citations)
US2543016A
Cited
US3236762A
Cited
US2972643A
Cited
US3132186A
Cited
US3104270A
Cited
US2937129A
Cited
US3033778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |