Patent US2628938A successfully refreshed from Google Patents.
US2628938A
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Production of greases using reaction products of alpha-hydroxy fatty acids
Assignee: Phillips Petroleum Co
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Filing: 1950-03-17
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Granted: 1953-02-17
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Expires: 1970-03-17
Abstract
No abstract record available.
Inventors
- 👤 William B Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:21
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE PRODUCTION OF A GEL TYPE LUBRICATING GREASE WHICH COMPRISES EFFECTING AN ESTERIFICATION JUNCTURE OF AN HYDROXY FATTY ACID WITH AT LEAST ONE OF AN HYDROXY FATTY ACID AND ANOTHER FATTY ACID TO PRODUCE A JUNCTURE PRODUCT HAVING AT LEAST SIXTEEN CARBON ATOMS TO THE MOLECULE; CONVERTING THE JUNCTURE PRODUCT TO A METAL SALT; AND ADMIXING SAID SALT WITH A SUITABLE LUBRICATING OIL TO PRODUCE SAID GREASE.
Claim 2
Dependent Claim
67 words
THE PRODUCTION OF A GEL TYPE LUBRICATING GREASE WHICH COMPRISES EFFECTING AN ESTERIFICATION JUNCTURE OF AN HYDROXY FATTY ACID WITH AT LEAST ONE OF AN HYDROXY FATTY ACID AND ANOTHER FATTY ACID TO PRODUCE A JUNCTURE PRODUCT HAVING AT LEAST SIXTEEN CARBON ATOMS TO THE MOLECULE; CONVERTING THE JUNCTURE PRODUCT TO A METAL SALT; AND ADMIXING SAID SALT WITH A SUITABLE LUBRICATING OIL TO PRODUCE SAID GREASE.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |