Patent US2858273A successfully refreshed from Google Patents.
US2858273A
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Extreme pressure lubricating grease
Assignee: Union Oil Company of California
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Filing: 1956-05-28
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Granted: 1958-10-28
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Harry J Worth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:35
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/16; C10M2211/00; C10M2211/02; C10M2211/04; C10M2211/044; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A LUBRICATING GREASE COMPRISING MINERAL LUBRICATING OIL THICKENED WITH 5% TO 30% BY WEIGHT OF A CALCIUM HYDROXY FATTY ACID SOAP AND CONTAINING SMALL AMOUNTS, SUFFICIENT TO IMPART E.P., ANTIWEAR AND GOOD MECHANICAL STABILITY CHARACTERISTICS, RESPECTIVELY RO SAID GREASE, OF (1) AN E.P., AGENT OF THE CLASS CONSISTING OF ORGANIC COMPOUNDS CONTAINING SULFUR, ORGANIC COMPOUNDS CONTAINING CHLORINE, ORGANIC COMPOUNDS CONTAINING SULFUR AND CHLORINE, MIXTURES OF SAID COMPOUNDS AND MIXTURES OF SAID COMPOUNDS WITH OIL-SOLUBLE LEAD SALTS, (2) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF GYLCERINE AND PENTAERYTHRITOL AND (3) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF TRIETHANOLAMINE AND TRIETHANOL-I AMINE SOAPS.
Claim 2
Dependent Claim
103 words
A LUBRICATING GREASE COMPRISING MINERAL LUBRICATING OIL THICKENED WITH 5% TO 30% BY WEIGHT OF A CALCIUM HYDROXY FATTY ACID SOAP AND CONTAINING SMALL AMOUNTS, SUFFICIENT TO IMPART E.P., ANTIWEAR AND GOOD MECHANICAL STABILITY CHARACTERISTICS, RESPECTIVELY RO SAID GREASE, OF (1) AN E.P., AGENT OF THE CLASS CONSISTING OF ORGANIC COMPOUNDS CONTAINING SULFUR, ORGANIC COMPOUNDS CONTAINING CHLORINE, ORGANIC COMPOUNDS CONTAINING SULFUR AND CHLORINE, MIXTURES OF SAID COMPOUNDS AND MIXTURES OF SAID COMPOUNDS WITH OIL-SOLUBLE LEAD SALTS, (2) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF GYLCERINE AND PENTAERYTHRITOL AND (3) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF TRIETHANOLAMINE AND TRIETHANOL-I AMINE SOAPS.
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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |