Patent US3898672A successfully refreshed from Google Patents.
Patent US3068174A successfully refreshed from Google Patents.
US3068174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing complex calcium salt-calcium soap grease
Assignee: Texaco Inc
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Filing: 1959-08-24
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Granted: 1962-12-11
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Expires: 1979-08-24
Abstract
No abstract record available.
Inventors
- 👤 Walter S Pelton
- 👤 Norman R Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:49
CPC Classifications
C; C10; C10M; C10M117/00; C10M117/02; C10M177/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/06; C10M2219/08; C10M2219/082; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
THE METHOD OF PREPARING AN EXTREME PRESSURE CALCIUM BASE GREASE WHICH COMPRISES SAPONIFYING A SAPONI FIABLE MATERIAL CHOSEN FROM THE CLASS CONSISTING OF SUBSTANTIALLY SATURATED UNSUBSTITUTED AND HYDROXY SUBSTITUTED C12-18 FATTY ACIDS, MIXTURES THEREOF AND THEIR ESTERS, WITH A BASIC REACTING CALCIUM COMPOUND IN THE PRESENCE OF AT LEAST A PORTION OF THE LUBRICATING OIL CONTAINED IN THE FINISHED GREASE CONTAINING A NEUTRAL CALCIUM SALT OF A FATTY ACID CONTAINING 1-3 CARBON ATOMS PER MOLECULAR IN AN AMOUNT SUFFICIENT TO GIVE 15-26 PERCENT BY WEIGHT OF THE SAID SALT IN THE FINISHED GREASE AND A MOL RATIO OF CALCIUM SALT TO CALCIUM SOAP OF 7:1 TO 20:1, AND AN ESTOLIDE OF A C10-24 HYDROXY FATTY ACID HAVING A MOLECULAR WEIGHT IN THE RANGE 500-2500 IN AN AMOUNT SUFFICIENT TO GIVE ABOUT 0.1-2.5 PERCENT OF ESTOLIDE IN THE FINISHED GREASE, THEREAFTER HEATING THE GREASE MIXTURE THUS OBTAINED AT A HIGHER TEMPERATURE ABOVE 250*F. BUT BELOW 400*F. UNTIL AT LEAST SUBSTANTIAL THICKENING HAS OCCURRED AND FINALLY COOLING THE GREASE MIXTURE AND ADDING ANY ADDITIONAL LUBRICATING OIL REQUIRED TO OBTAIN A GREASE OF THE DESIRED GRADE.
Claim 2
Independent Claim
183 words
THE METHOD OF PREPARING AN EXTREME PRESSURE CALCIUM BASE GREASE WHICH COMPRISES SAPONIFYING A SAPONI FIABLE MATERIAL CHOSEN FROM THE CLASS CONSISTING OF SUBSTANTIALLY SATURATED UNSUBSTITUTED AND HYDROXY SUBSTITUTED C12-18 FATTY ACIDS, MIXTURES THEREOF AND THEIR ESTERS, WITH A BASIC REACTING CALCIUM COMPOUND IN THE PRESENCE OF AT LEAST A PORTION OF THE LUBRICATING OIL CONTAINED IN THE FINISHED GREASE CONTAINING A NEUTRAL CALCIUM SALT OF A FATTY ACID CONTAINING 1-3 CARBON ATOMS PER MOLECULAR IN AN AMOUNT SUFFICIENT TO GIVE 15-26 PERCENT BY WEIGHT OF THE SAID SALT IN THE FINISHED GREASE AND A MOL RATIO OF CALCIUM SALT TO CALCIUM SOAP OF 7:1 TO 20:1, AND AN ESTOLIDE OF A C10-24 HYDROXY FATTY ACID HAVING A MOLECULAR WEIGHT IN THE RANGE 500-2500 IN AN AMOUNT SUFFICIENT TO GIVE ABOUT 0.1-2.5 PERCENT OF ESTOLIDE IN THE FINISHED GREASE, THEREAFTER HEATING THE GREASE MIXTURE THUS OBTAINED AT A HIGHER TEMPERATURE ABOVE 250*F. BUT BELOW 400*F. UNTIL AT LEAST SUBSTANTIAL THICKENING HAS OCCURRED AND FINALLY COOLING THE GREASE MIXTURE AND ADDING ANY ADDITIONAL LUBRICATING OIL REQUIRED TO OBTAIN A GREASE OF THE DESIRED GRADE.
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |