US2923682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions containing mixed salts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-09-17
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Granted: 1960-02-02
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Expires: 1977-09-17
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:39
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2207/00; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/11; C10M2209/111; C10M2209/112; C10M2219/00; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A LUBRICATING COMPOSITION COMPRISING FROM 50 TO 98 WT. PERCENT OF A LUBRICATING OIL HAVING A VISCOSITY IN THE RANGE OF 60 TO 2500 S.S.U. AT 100*F., AND FROM 2 TO 50 WT. PERCENT OF A THICKENER COMPRISING A CO-NEUTRALIZED MIXTURE OF ALKALINE EARTH METAL SALTS OF ACETIC ACID, INTERMEDIATE MOLECULAR WEIGHT MONOCARBOXYLIC ACIDS HAVING FROM 8 TO 12 CARBON ATOMS PER MOLECULE AND A DIALKYL DITHIOPHOSPHORIC ACID HAVING FROM 3 TO 8 CARBON ATOMS PER ALKYL GROUP, THE MOLE RATIO OF DITHIOPHOSPHORIC ACID TO INTERMEDIATE MOLECULAR WEIGHT MONOCARBOXYLIC ACID BEING ABOUT 1:1 TO 1:4, THE MOLE RATIO OF DITHIOPHOSPHORIC ACIDS AND INTERMEDIATE MOLECULAR WEIGHT MONOCARBOXYLIC ACIDS COMBINED TO ACETIC ACID BEING IN THE RANGE OF FROM 1:2.5 TO 1:15, SAID MIXTURE BEING PREPARED AT A TEMPERATURE OF ABOUT 150* TO 350*F.
Claim 2
Dependent Claim
132 words
A LUBRICATING COMPOSITION COMPRISING FROM 50 TO 98 WT. PERCENT OF A LUBRICATING OIL HAVING A VISCOSITY IN THE RANGE OF 60 TO 2500 S.S.U. AT 100*F., AND FROM 2 TO 50 WT. PERCENT OF A THICKENER COMPRISING A CO-NEUTRALIZED MIXTURE OF ALKALINE EARTH METAL SALTS OF ACETIC ACID, INTERMEDIATE MOLECULAR WEIGHT MONOCARBOXYLIC ACIDS HAVING FROM 8 TO 12 CARBON ATOMS PER MOLECULE AND A DIALKYL DITHIOPHOSPHORIC ACID HAVING FROM 3 TO 8 CARBON ATOMS PER ALKYL GROUP, THE MOLE RATIO OF DITHIOPHOSPHORIC ACID TO INTERMEDIATE MOLECULAR WEIGHT MONOCARBOXYLIC ACID BEING ABOUT 1:1 TO 1:4, THE MOLE RATIO OF DITHIOPHOSPHORIC ACIDS AND INTERMEDIATE MOLECULAR WEIGHT MONOCARBOXYLIC ACIDS COMBINED TO ACETIC ACID BEING IN THE RANGE OF FROM 1:2.5 TO 1:15, SAID MIXTURE BEING PREPARED AT A TEMPERATURE OF ABOUT 150* TO 350*F.
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |