Patent US3843528A successfully refreshed from Google Patents.
US3843528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum complex soap grease containing calcium carbonate
Assignee: Gulf Research and Development Co
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Filing: 1973-09-06
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Granted: 1974-10-22
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Expires: 1993-09-06
Abstract
Abstract 1. A LUBRICATING GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE HAVING AN ANILINE POINT BELOW ABOUT 230*F. THICKENED TO THE CONSISTENCY OF A GREASE WITH AN ALUMINUM COMPLEX SOAP OF BENZOIC ACID AND A SATURATED FATTY ACID HAVING FROM 20 TO 22 CARBON ATOMS PER MOLECULE WHEREIN THE MOLAR RATIO OF BENZOIC ACID TO C20-C22 FATTY ACID IS ABOUT 1.25:1 TO ABOUT 2:1, BENZOIC ACID TO C20-C22 FATTY ACID, RESPECTIVELY, AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE ANTIWEAR AND EXTREME PRESSURE PROPERTIES OF THE GREASE, OF PRECIPITATED CALCIUM CARBONATE.
Inventors
- 👤 W Bailey
- 👤 P Mccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:48
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A LUBRICATING GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE HAVING AN ANILINE POINT BELOW ABOUT 230*F. THICKENED TO THE CONSISTENCY OF A GREASE WITH AN ALUMINUM COMPLEX SOAP OF BENZOIC ACID AND A SATURATED FATTY ACID HAVING FROM 20 TO 22 CARBON ATOMS PER MOLECULE WHEREIN THE MOLAR RATIO OF BENZOIC ACID TO C20-C22 FATTY ACID IS ABOUT 1.25:1 TO ABOUT 2:1, BENZOIC ACID TO C20-C22 FATTY ACID, RESPECTIVELY, AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE ANTIWEAR AND EXTREME PRESSURE PROPERTIES OF THE GREASE, OF PRECIPITATED CALCIUM CARBONATE.
Claim 2
Dependent Claim
94 words
A LUBRICATING GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE HAVING AN ANILINE POINT BELOW ABOUT 230*F. THICKENED TO THE CONSISTENCY OF A GREASE WITH AN ALUMINUM COMPLEX SOAP OF BENZOIC ACID AND A SATURATED FATTY ACID HAVING FROM 20 TO 22 CARBON ATOMS PER MOLECULE WHEREIN THE MOLAR RATIO OF BENZOIC ACID TO C20-C22 FATTY ACID IS ABOUT 1.25:1 TO ABOUT 2:1, BENZOIC ACID TO C20-C22 FATTY ACID, RESPECTIVELY, AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE ANTIWEAR AND EXTREME PRESSURE PROPERTIES OF THE GREASE, OF PRECIPITATED CALCIUM CARBONATE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |