US2758973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing lubricating grease compositions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-05-29
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Granted: 1956-08-14
•
Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
- 👤 Thomas E Witts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:18
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/283; C10M2207/30; C10M2207/302; C10M2207/304; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/04; C10M2219/044; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE PROCESS FOR PREPARING A CHANNELING TYPE HIGH TEMPERATURE ANTI-FRICTION BEARING LUBRICANT WHICH COMPRISES THE STEPS OF ADMIXING WITH A MINERAL LUBRICATING OIL A GREASE FORMING AMOUNT OF A COMPLEX SOAP, HEATING TO A TEMPERATURE SUFFICIENT TO COMPLETELY DISSOLVE SAID SOAP, COOLING THE MIXTURE TO A TEMPERATURE BELOW THE TRANSITION POINT OF THE SOAP, THEN ADDING A QUANTITY OF A SYNTHETIC LUBRICATING OIL SUFFICIENT TO RESULT IN A MIXTURE CONTAING FROM ABOUT 6% TO 18% SOAP, AND SUBJECTING THE RESULTING MIXTURE TO THE ACTION OF HIGH RATES OF SHEAR IN THE ORDER OF 10,000 TO 500,000 RECIPROCAL SECONDS UNDER STREAMLINED CONDITIONS TO OBTAIN A FINISHED GREASE HAVING AN ASTM PENETRATION VALUE BETWEEN 200 AND 350 MM./10.
Claim 2
Dependent Claim
116 words
THE PROCESS FOR PREPARING A CHANNELING TYPE HIGH TEMPERATURE ANTI-FRICTION BEARING LUBRICANT WHICH COMPRISES THE STEPS OF ADMIXING WITH A MINERAL LUBRICATING OIL A GREASE FORMING AMOUNT OF A COMPLEX SOAP, HEATING TO A TEMPERATURE SUFFICIENT TO COMPLETELY DISSOLVE SAID SOAP, COOLING THE MIXTURE TO A TEMPERATURE BELOW THE TRANSITION POINT OF THE SOAP, THEN ADDING A QUANTITY OF A SYNTHETIC LUBRICATING OIL SUFFICIENT TO RESULT IN A MIXTURE CONTAING FROM ABOUT 6% TO 18% SOAP, AND SUBJECTING THE RESULTING MIXTURE TO THE ACTION OF HIGH RATES OF SHEAR IN THE ORDER OF 10,000 TO 500,000 RECIPROCAL SECONDS UNDER STREAMLINED CONDITIONS TO OBTAIN A FINISHED GREASE HAVING AN ASTM PENETRATION VALUE BETWEEN 200 AND 350 MM./10.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |