US2553423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating grease composition
Assignee: Standard Oil Development Co
•
Filing: 1949-10-12
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Granted: 1951-05-15
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Expires: 1969-10-12
Abstract
No abstract record available.
Inventors
- 👤 William W Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:36
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A LUBRICATING GREASE COMPOSITION COMPRISING A LUBRICATING OIL AND A SUFFICIENT QUANTITY OF A MIXTURE OF SUBSTANTIALLY EQUAL PARTS OF METAL SULFONATES OF AT LEAST TWO ACIDS HAVING RESPECTIVELY, A MOLECULAR WEIGHT OF 420 TO 500 AND A MOLECULAR WEIGHT OF 350 TO 380, COMBINED IN A COMPLEX WITH A SALT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF LOW MOLECULAR WEIGHT ALIPHATIC CARBOXYLIC ACIDS, TO THICKEN SAID OIL TO A GREASE CONSISTENCY.
Claim 2
Dependent Claim
74 words
A LUBRICATING GREASE COMPOSITION COMPRISING A LUBRICATING OIL AND A SUFFICIENT QUANTITY OF A MIXTURE OF SUBSTANTIALLY EQUAL PARTS OF METAL SULFONATES OF AT LEAST TWO ACIDS HAVING RESPECTIVELY, A MOLECULAR WEIGHT OF 420 TO 500 AND A MOLECULAR WEIGHT OF 350 TO 380, COMBINED IN A COMPLEX WITH A SALT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF LOW MOLECULAR WEIGHT ALIPHATIC CARBOXYLIC ACIDS, TO THICKEN SAID OIL TO A GREASE CONSISTENCY.
References Cited (Backward Citations)
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Cited
US2468099A
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US2487081A
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US2487080A
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US2468098A
Cited
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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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |