Patent US3009875A successfully refreshed from Google Patents.
US3009875A
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Lubricating composition containing an inorganic manganese compound and method of reducing engine wear therewith
Assignee: Gulf Research and Development Co
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Filing: 1959-04-10
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Granted: 1961-11-21
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Expires: 1979-04-10
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocchini
- 👤 Charles E Trautman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:51
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/062; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2205/00; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10N; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A LUBRICATION COMPOSITION ADAPTED FOR REDUCING WEAR IN A INTERNAL COMBUSTION ENGINE OPERATING OF A FUEL CONTAINING VANADIUM IN AN AMOUNT SUFFICIENT TO PRODUCE TO CORROSIVE ASH UPON COMBUSTION THEREOF, SAID LUBRICATING COMPOSITION COMPRISING A DISPERSION OF AN INORGANIC MANGANESE COMPOUND IN A MAJOR AMOUNT OF A LUBRICATING OIL, SAID INORGANIC MANGANESE COMPOUND HAVING A DEGREE OF HARDNESS ON THE MOHS HARDNESS SCALE OF NOTE MORE THAN ABOUT 5 AND BEING PRESENT IN SAID LUBRICATING COMPOSITION IN AN AMOUNT SUFFICIENT TO PROVIDE A MANGANESE CONTENT OF ABOUT 0.17 TO ABOUT 1 PERCENT BY WEIGHT.
Claim 2
Dependent Claim
94 words
A LUBRICATION COMPOSITION ADAPTED FOR REDUCING WEAR IN A INTERNAL COMBUSTION ENGINE OPERATING OF A FUEL CONTAINING VANADIUM IN AN AMOUNT SUFFICIENT TO PRODUCE TO CORROSIVE ASH UPON COMBUSTION THEREOF, SAID LUBRICATING COMPOSITION COMPRISING A DISPERSION OF AN INORGANIC MANGANESE COMPOUND IN A MAJOR AMOUNT OF A LUBRICATING OIL, SAID INORGANIC MANGANESE COMPOUND HAVING A DEGREE OF HARDNESS ON THE MOHS HARDNESS SCALE OF NOTE MORE THAN ABOUT 5 AND BEING PRESENT IN SAID LUBRICATING COMPOSITION IN AN AMOUNT SUFFICIENT TO PROVIDE A MANGANESE CONTENT OF ABOUT 0.17 TO ABOUT 1 PERCENT BY WEIGHT.
References Cited (Backward Citations)
US2622993A
Cited
US2844112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |