US3192158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions containing a detergent copolymer and an alkaline earth petroleum sulfonate-trialkyl amine complex
Assignee: Shell USA Inc
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Filing: 1962-04-18
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Granted: 1965-06-29
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Roland F Bergstrom
- 👤 Richard C Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:10
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04; C10N2010/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND FROM ABOUT 0.5 TO 10% BY WEIGHT OF (A) AN OIL-SOLUBLE NITROGEN-CONTAINING DETERGENT POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) A COPOLYMER OF VINYL PYRIDINE AND A LONG-CHAIN ALKYL ACRYLATE AND (2) COPOLYMER OF VINYL PYRROLIDONE AND A LONG-CHAIN ALKYL ACRYLATE SAID COPOLYMERS HAVING A MOLECULAR WEIGHT RANGE OF FROM 100,000 TO 1,000,000 AND FROM ABOUT 0.1% TO ABOUT 10% BY WEIGHT OF (B) AN OIL-SOLUBLE BASIC ALKALINE EARTH PETROLEUM SULFONATE-TRIALKYLAMINE COMPLEX HAVING THE FORMULA (R)3N.HO-MO3SX WHERE THE R''S ARE ALKYL RADICALS, ONE OF WHICH CONTAINS FROM 6 TO 20 CARBON ATOMS AND THE REMAINING R RADICALS HAVING FROM 1 TO 4 CARBON ATOMS, X IS THE PETROLEUM RESIDUE OF THE SULFONATE COMPOUND AND M IS AN ALKALINE EARTH METAL, SAID BASIC ALKALINE EARTH PETROLEUM SULFONATE CONTAINING 180 TO 800% OF ALKALINE EARTH OVER THAT THEORETICALLY REQUIRED TO NEUTRALIZE THE PETROLEUM SULFONIC ACID.
Claim 2
Dependent Claim
156 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF LUBRICATING OIL AND FROM ABOUT 0.5 TO 10% BY WEIGHT OF (A) AN OIL-SOLUBLE NITROGEN-CONTAINING DETERGENT POLYMER SELECTED FROM THE GROUP CONSISTING OF (1) A COPOLYMER OF VINYL PYRIDINE AND A LONG-CHAIN ALKYL ACRYLATE AND (2) COPOLYMER OF VINYL PYRROLIDONE AND A LONG-CHAIN ALKYL ACRYLATE SAID COPOLYMERS HAVING A MOLECULAR WEIGHT RANGE OF FROM 100,000 TO 1,000,000 AND FROM ABOUT 0.1% TO ABOUT 10% BY WEIGHT OF (B) AN OIL-SOLUBLE BASIC ALKALINE EARTH PETROLEUM SULFONATE-TRIALKYLAMINE COMPLEX HAVING THE FORMULA (R)3N.HO-MO3SX WHERE THE R''S ARE ALKYL RADICALS, ONE OF WHICH CONTAINS FROM 6 TO 20 CARBON ATOMS AND THE REMAINING R RADICALS HAVING FROM 1 TO 4 CARBON ATOMS, X IS THE PETROLEUM RESIDUE OF THE SULFONATE COMPOUND AND M IS AN ALKALINE EARTH METAL, SAID BASIC ALKALINE EARTH PETROLEUM SULFONATE CONTAINING 180 TO 800% OF ALKALINE EARTH OVER THAT THEORETICALLY REQUIRED TO NEUTRALIZE THE PETROLEUM SULFONIC ACID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |