Patent US2588280A successfully refreshed from Google Patents.
US2588280A
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Lubricating grease
Assignee: Standard Oil Development Co
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Filing: 1949-08-26
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Granted: 1952-03-04
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Expires: 1969-08-26
Abstract
No abstract record available.
Inventors
- 👤 O'halloran Rosemary
- 👤 John J Kolfenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:02
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A LUBRICATING GREASE COMPOSITION WHICH CONSISTS ESSENTIALLY OF A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH FROM 10 TO 20% OF A MIXTURE OF THE SODIUM AND BARIUM SALTS OF A MIXTURE OF SUBSTANTIALLY SATURATED ALIPHATIC ACIDS, SAID MIXTURE OF ACIDS CONTAINING FROM 10 TO 90% BY WEIGHT OF AN ACID IN THE C16 TO C22 RANGE AND FROM 10 TO 30% BY WEIGHT OF AN ACID HAVING 4 LESS CARBON ATOMS THAN THE ACID PRESENT IN THE PREDOMINANT AMOUNT.
Claim 2
Dependent Claim
81 words
A LUBRICATING GREASE COMPOSITION WHICH CONSISTS ESSENTIALLY OF A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH FROM 10 TO 20% OF A MIXTURE OF THE SODIUM AND BARIUM SALTS OF A MIXTURE OF SUBSTANTIALLY SATURATED ALIPHATIC ACIDS, SAID MIXTURE OF ACIDS CONTAINING FROM 10 TO 90% BY WEIGHT OF AN ACID IN THE C16 TO C22 RANGE AND FROM 10 TO 30% BY WEIGHT OF AN ACID HAVING 4 LESS CARBON ATOMS THAN THE ACID PRESENT IN THE PREDOMINANT AMOUNT.
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) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |