US2943054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear stable barium 12-hydroxy stearate grease containing a boron ester compound
Assignee: Union Oil Company of California
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Filing: 1958-03-21
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Granted: 1960-06-28
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Expires: 1978-03-21
Abstract
No abstract record available.
Inventors
- 👤 Harry J Worth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:15
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2010/00; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A LUBRICATING GREASE CONSISTING ESSENTIALLY OF MINERAL LUBRICATING OIL THICKENED WITH ABOUT 3% TO ABOUT 30% BY WEIGHT OF BARIUM 12-HYDROXYSTEARATE AND CONTAINING A SMALL AMOUNT, SUFFICIENT TO IMPART GOOD MECHANICAL STABILITY AND REVERSIBILITY CHARACTERISTICS TO SAID GREASE OF THE REACTION PRODUCT, OBTAINED BY HEATING TO A TEMPERATURE BETWEEN ABOUT 215*F. AND ABOUT 425*F., OF ORTHOBORIC ACID AND AN ESTER SELECTED FROM THE CLASS CONSISTING OF GLYCOL AND POLYGLYCOL, MONO AND DI-ESTERS OF HYDROXY FATTY ACIDS HAVING 8 TO 50 CARBON ATOMS AND GLYCEROL MONO, DI AND TRI-ESTERS OF HYDROXY FATTY ACIDS HAVING 8 TO 50 CARBON ATOMS.
Claim 2
Dependent Claim
98 words
A LUBRICATING GREASE CONSISTING ESSENTIALLY OF MINERAL LUBRICATING OIL THICKENED WITH ABOUT 3% TO ABOUT 30% BY WEIGHT OF BARIUM 12-HYDROXYSTEARATE AND CONTAINING A SMALL AMOUNT, SUFFICIENT TO IMPART GOOD MECHANICAL STABILITY AND REVERSIBILITY CHARACTERISTICS TO SAID GREASE OF THE REACTION PRODUCT, OBTAINED BY HEATING TO A TEMPERATURE BETWEEN ABOUT 215*F. AND ABOUT 425*F., OF ORTHOBORIC ACID AND AN ESTER SELECTED FROM THE CLASS CONSISTING OF GLYCOL AND POLYGLYCOL, MONO AND DI-ESTERS OF HYDROXY FATTY ACIDS HAVING 8 TO 50 CARBON ATOMS AND GLYCEROL MONO, DI AND TRI-ESTERS OF HYDROXY FATTY ACIDS HAVING 8 TO 50 CARBON ATOMS.
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |