US3000823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of lubricating greases from unsaturated fatty acid materials
Assignee: Texaco Inc
•
Filing: 1955-03-07
•
Granted: 1961-09-19
•
Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Louis A Clarke
- 👤 George W Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:03
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/067; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD OF PREPARING LUBRICATING GREASES FROM UNSATURATED FATTY ACID MATERIALS AS THE SAPONIFIABLE MATERIALS WHICH COMPRISES EPOXIDIZING AN UNSATURATED FATTY ACID MATERIAL OF THE CLASS CONSISTING OF HIGH MOLECULAR WEIGHT FATTY ACIDS CONTAINING AN OLEFINIC DOUBLE BOND AND THE ESTERS THEREOF SO AS TO CONVERT AT LEAST A MAJOR PORTION OF THE OLEFINIC DOUBLE BONDS INTO OXIRANE GROUPS, HYDROGENATING THE RESULTING EPOXIDIZED MATERIAL UNDER MILD GENATING THE RESULTING EPOXIDIZED MATERIAL UNDER MILD OXIRANE GROUPS INTO HYDROXYETHANE GROUPS, SAPONIFYING WITH A METAL COMPOUND THE RESULTING HYDROGENATED PRODUCT AND THICKENING AN OLEAGINOUS LIQUID LUBRICATING BASE TO A GREASE CONSISTENCY WITH THE RESULTING SAPONIFICATION PRODUCT.
Claim 2
Independent Claim
103 words
THE METHOD OF PREPARING LUBRICATING GREASES FROM UNSATURATED FATTY ACID MATERIALS AS THE SAPONIFIABLE MATERIALS WHICH COMPRISES EPOXIDIZING AN UNSATURATED FATTY ACID MATERIAL OF THE CLASS CONSISTING OF HIGH MOLECULAR WEIGHT FATTY ACIDS CONTAINING AN OLEFINIC DOUBLE BOND AND THE ESTERS THEREOF SO AS TO CONVERT AT LEAST A MAJOR PORTION OF THE OLEFINIC DOUBLE BONDS INTO OXIRANE GROUPS, HYDROGENATING THE RESULTING EPOXIDIZED MATERIAL UNDER MILD GENATING THE RESULTING EPOXIDIZED MATERIAL UNDER MILD OXIRANE GROUPS INTO HYDROXYETHANE GROUPS, SAPONIFYING WITH A METAL COMPOUND THE RESULTING HYDROGENATED PRODUCT AND THICKENING AN OLEAGINOUS LIQUID LUBRICATING BASE TO A GREASE CONSISTENCY WITH THE RESULTING SAPONIFICATION PRODUCT.
References Cited (Backward Citations)
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US2651616A
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US2607735A
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US2712527A
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |