US2607734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing hydroxy acid greases and product thereof
Assignee: Standard Oil Development Co
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Filing: 1950-05-20
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Granted: 1952-08-19
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Lorne W Sproule
- 👤 Warren C Pattenden
- 👤 Laurence F King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:28
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/24; C10M2215/26; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
THE PROCESS OF PREPARING A SUBSTANTIALLY ANHYDROUS LUBRICATING GREASE WHICH COMPRISES SAPONIFYING 2 TO 30% BY A WEIGHT, BASED ON THE TOTAL FINAL COMPOSITION, THE HYDROXY ACID SELECTED FROM THE GROUP WHICH CONSISTS OF SUBSTANTIALLY SATURATED MONO- AND DIHYDROXY FATTY ACIDS WHICH RANGE BETWEEN ABOUT 12 AND ABOUT 24 CARBON ATOMS PER MOLECULE WITH LIME IN THE PRESENCE OF ABOUT ONE-HALF TO ABOUT FIVE TIMES THE QUANTITY OF MINERAL BASE LUBRICATING OIL BASED ON THE WEIGHT OF THE HYDROXY ACIDS AND AT A MAXIMUM COOKING TEMPERATURE BELOW ABOUT 275* F., AND THEREAFTER ADDING ADDITIONAL LUBRICATING OIL AS THE OIL-SOAP MIXTURE IS COOLED, WITH CONTINUOUS STIRRING UNTIL A TEMPERATURE OF ABOUT 200* F. IS REACHED.
Claim 2
Dependent Claim
114 words
THE PROCESS OF PREPARING A SUBSTANTIALLY ANHYDROUS LUBRICATING GREASE WHICH COMPRISES SAPONIFYING 2 TO 30% BY A WEIGHT, BASED ON THE TOTAL FINAL COMPOSITION, THE HYDROXY ACID SELECTED FROM THE GROUP WHICH CONSISTS OF SUBSTANTIALLY SATURATED MONO- AND DIHYDROXY FATTY ACIDS WHICH RANGE BETWEEN ABOUT 12 AND ABOUT 24 CARBON ATOMS PER MOLECULE WITH LIME IN THE PRESENCE OF ABOUT ONE-HALF TO ABOUT FIVE TIMES THE QUANTITY OF MINERAL BASE LUBRICATING OIL BASED ON THE WEIGHT OF THE HYDROXY ACIDS AND AT A MAXIMUM COOKING TEMPERATURE BELOW ABOUT 275* F., AND THEREAFTER ADDING ADDITIONAL LUBRICATING OIL AS THE OIL-SOAP MIXTURE IS COOLED, WITH CONTINUOUS STIRRING UNTIL A TEMPERATURE OF ABOUT 200* F. IS REACHED.
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) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |