US3014866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil compositions
Assignee: California Research LLC
•
Filing: 1958-12-29
•
Granted: 1961-12-26
•
Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Richard L Ferm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:21
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/24; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2203/10; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/282; C10M2207/34; C10M2219/00; C10M2219/04; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2227/00; C10M2227/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY AND FROM ABOUT 0.5% TO ABOUT 25%, BY WEIGHT, OF A DOUBLE CARBONATED, DOUBLE BASIC BARIUM SULFONATE OBTAINED BY (1) REACTING A NEUTRAL BARIUM SULFONATE WITH FROM 1 TO 1.5 MOLS OF BARIUM HYDROXIDE PER MOL OF NEUTRAL BARIUM SULFONATE, (2) REACTING THE BASIC BARIUM SULFONATE OF (1) AT 250*F.-400*F. WITH FROM 0.5 TO 1.0 MOL OF CO2 PER MOL OF BASIC BARIUM CONTENT OF THE BASIC SULFONATE OF (1), (3) REACTING THE RESULTING CARBONATED BASIC BARIUM SULFONATE OF (2) WITH FROM 1 TO 1.5 MOLS OF BARIUM HYDROXIDE PER MOL OF NEUTRAL BARIUM SULFONATE OF (1), AND (4) REACTING THE PRODUCT OF (3) AT 250*F.-400*F. WITH FROM 0.5 TO 1 MOL OF CO2 PER MOL OF ADDITIONAL BARIUM ADDED IN (3).
Claim 2
Dependent Claim
136 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF AN OIL OF LUBRICATING VISCOSITY AND FROM ABOUT 0.5% TO ABOUT 25%, BY WEIGHT, OF A DOUBLE CARBONATED, DOUBLE BASIC BARIUM SULFONATE OBTAINED BY (1) REACTING A NEUTRAL BARIUM SULFONATE WITH FROM 1 TO 1.5 MOLS OF BARIUM HYDROXIDE PER MOL OF NEUTRAL BARIUM SULFONATE, (2) REACTING THE BASIC BARIUM SULFONATE OF (1) AT 250*F.-400*F. WITH FROM 0.5 TO 1.0 MOL OF CO2 PER MOL OF BASIC BARIUM CONTENT OF THE BASIC SULFONATE OF (1), (3) REACTING THE RESULTING CARBONATED BASIC BARIUM SULFONATE OF (2) WITH FROM 1 TO 1.5 MOLS OF BARIUM HYDROXIDE PER MOL OF NEUTRAL BARIUM SULFONATE OF (1), AND (4) REACTING THE PRODUCT OF (3) AT 250*F.-400*F. WITH FROM 0.5 TO 1 MOL OF CO2 PER MOL OF ADDITIONAL BARIUM ADDED IN (3).
References Cited (Backward Citations)
US2839470A
Cited
US2881206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |