US2641577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithium-calcium lubricating grease composition
Assignee: Standard Oil Development Co
•
Filing: 1951-06-22
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Granted: 1953-06-09
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Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 O'halloran Rosemary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:50
CPC Classifications
C; C10; C10M; C10M5/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/20; C10M2207/28; C10M2207/282; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A LUBRICATING COMPOSITION WHICH COMPRISES A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH A MIXTURE OF THE LITHIUM AND CALCIUM SOAPS OF AN UNSUBSTITUTED SUBSTANTIALLY SATURATED HIGH MOLECULAR WEIGHT SAPONIFIABLE MATERIAL WHEREIN THE MOLAR RATIO OF THE LITHIUM SOAP TO THE CALCIUM SOAP IS WITHIN A RANGE OF FROM 6:1 TO 3:1.
Claim 2
Dependent Claim
53 words
A LUBRICATING COMPOSITION WHICH COMPRISES A LUBRICATING OIL THICKENED TO A GREASE CONSISTENCY WITH A MIXTURE OF THE LITHIUM AND CALCIUM SOAPS OF AN UNSUBSTITUTED SUBSTANTIALLY SATURATED HIGH MOLECULAR WEIGHT SAPONIFIABLE MATERIAL WHEREIN THE MOLAR RATIO OF THE LITHIUM SOAP TO THE CALCIUM SOAP IS WITHIN A RANGE OF FROM 6:1 TO 3:1.
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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) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |