Patent DE714510C successfully refreshed from Google Patents.
Patent US2616850A successfully refreshed from Google Patents.
US2616850A
Expired / Lapsed
US
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Grease preparation
Assignee: Standard Oil Co
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Filing: 1949-11-22
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Granted: 1952-11-04
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Expires: 1969-11-22
Abstract
No abstract record available.
Inventors
- 👤 George V Browning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:11
CPC Classifications
C; C10; C10M; C10M5/00; C10M7/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/10; C10M2201/102; C10M2205/00; C10M2205/17; C10M2205/173; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2219/00; C10M2219/02; C10M2219/08; C10M2219/082; C10M2219/084; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE METHOD OF PREPARING A GREASE COMPRISING EXTRACTING A GREASE, COMPRISING A NORMALLY LIQUID ORGANIC LUBRICANT AND A SOAP OF THE HIGH MOLECULAR WEIGHT CARBOXYLIC ACID, WITH A SOLVENT TO REMOVE SAID LIQUID ORGANIC LUBRICANT FROM SAID GREASE, ADDING A SECOND NORMALLY LIQUID ORGANIC LUBRICANT SOLUBLE IN SAID SOLVENT TO THE SOLVENTSOAP SYSTEM AND EVAPORATING SAID SOLVENT.
Claim 2
Independent Claim
57 words
THE METHOD OF PREPARING A GREASE COMPRISING EXTRACTING A GREASE, COMPRISING A NORMALLY LIQUID ORGANIC LUBRICANT AND A SOAP OF THE HIGH MOLECULAR WEIGHT CARBOXYLIC ACID, WITH A SOLVENT TO REMOVE SAID LIQUID ORGANIC LUBRICANT FROM SAID GREASE, ADDING A SECOND NORMALLY LIQUID ORGANIC LUBRICANT SOLUBLE IN SAID SOLVENT TO THE SOLVENTSOAP SYSTEM AND EVAPORATING SAID SOLVENT.
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) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |