Patent US2824839A successfully refreshed from Google Patents.
US2824839A
Expired / Lapsed
US
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Lubricants
Assignee: Ohio Oil Co
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Filing: 1954-03-12
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Granted: 1958-02-25
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Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Glen C Templeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:29
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/06; C10M2223/065; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A MINERAL OIL LUBRICANT COMPOSITION COMPRISING (A) A MAJOR PROPORTION OF A MINERAL OIL LUBRICANT SELECTED FROM THE CLASS CONSISTING OF MINERAL OIL AND GREASES, AND (B) AS THE FILM STRENGHT ENHANCING CONSTITUENT OF SAID COMPOSITION A SMALL AMOUNT, SUFFICIENT TO ENHANCE THE FILM STRENGHT OF THE LUBRICANT, OF A DI-(HALO-ALKYL), MONO-OLEFINIC ALIPHATIC HYDROCARBON-RADICAAL-SUBSITUTED PHOSPHONATE ADDITIVE WHERIN THE MONO-OLEFINIC HYDROCARBON RADICAL IS LINKED BY A CARBON DIRECTLY TO THE PHOSPHORUS AND EACH OF THE TWO HALO-ALKYL RADICALS IS LINKED RESPECTIVELY TO A SEPARATE ONE OF THE OXYGENS LINKED TO THE PHOSPHORUS. WHICH ADDITIVE IS SOLUBLE IN THE LUBRICANT INGREDIENT AT LEAST IN SAID SMALL AMOUNT AND, IN SUCH SMALL CONCENTRATION IN THE LUBRICANT, IS INERT ALLOYS WATER, STABLE AT ELEVATED TEMPERATURES, AND NON-CORROSIVE TO THE FERROUS AND NON-FERROUS METALS AND THIE ALLOYS THAT ARE USED IN DEVICES REQUIRING LUBRICANTS: SAID COMPOSITION HAVING ENHANCED FILM STRENGTH OVER THAT WHICH THE MINERAL-TYPE LUBRICANT ITSELF HAS WITHOUT THIS ADDITIVED
Claim 2
Dependent Claim
156 words
A MINERAL OIL LUBRICANT COMPOSITION COMPRISING (A) A MAJOR PROPORTION OF A MINERAL OIL LUBRICANT SELECTED FROM THE CLASS CONSISTING OF MINERAL OIL AND GREASES, AND (B) AS THE FILM STRENGHT ENHANCING CONSTITUENT OF SAID COMPOSITION A SMALL AMOUNT, SUFFICIENT TO ENHANCE THE FILM STRENGHT OF THE LUBRICANT, OF A DI-(HALO-ALKYL), MONO-OLEFINIC ALIPHATIC HYDROCARBON-RADICAAL-SUBSITUTED PHOSPHONATE ADDITIVE WHERIN THE MONO-OLEFINIC HYDROCARBON RADICAL IS LINKED BY A CARBON DIRECTLY TO THE PHOSPHORUS AND EACH OF THE TWO HALO-ALKYL RADICALS IS LINKED RESPECTIVELY TO A SEPARATE ONE OF THE OXYGENS LINKED TO THE PHOSPHORUS. WHICH ADDITIVE IS SOLUBLE IN THE LUBRICANT INGREDIENT AT LEAST IN SAID SMALL AMOUNT AND, IN SUCH SMALL CONCENTRATION IN THE LUBRICANT, IS INERT ALLOYS WATER, STABLE AT ELEVATED TEMPERATURES, AND NON-CORROSIVE TO THE FERROUS AND NON-FERROUS METALS AND THIE ALLOYS THAT ARE USED IN DEVICES REQUIRING LUBRICANTS: SAID COMPOSITION HAVING ENHANCED FILM STRENGTH OVER THAT WHICH THE MINERAL-TYPE LUBRICANT ITSELF HAS WITHOUT THIS ADDITIVED
References Cited (Backward Citations)
US2614990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |