US3236770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transaxle lubricant
Assignee: Sinclair Research Inc
•
Filing: 1960-09-28
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Granted: 1966-02-22
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Expires: 1980-09-28
Abstract
No abstract record available.
Inventors
- 👤 Howard J Matson
- 👤 Leonard E Beare
- 👤 Rodney J Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:48
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C329/00; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/04; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/06; C10M2219/00; C10M2219/04; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/14; C10N2010/16; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/02; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A LUBRICATING FLUID COMPOSITION SUITABLE FOR USE IN BOTH AUTOMOTIVE AUTOMATIC TRANSMISSIONS AND AUTOMOTIVE HYPOID DIFFERENTIALS AND CHARACTERIZED BY A VISCOSITY INDEX OF AT LEAST ABOUT 125 AND A POUR POINT BELOW ABOUT -40*F. CONSISTING ESSENTIALLY OF: (I) A MAJOR AMOUNT OF BASE LUBRICATING OIL, (II) ABOUT 1 TO 10 WEIGHT PERCENT OF AN OIL-SOLUBLE COMPONENT SELECTED FROM THE GROUP CONSISTING OF A, B AND C BELOW: A. METAL DIALKYL DITHIOPHOSPHATE WHEREIN THE METAL HAS AN ATOMIC NUMBER OF 28 TO 30 AND THE ALKYL GROUP CONTAINS ABOUT 3 TO 12 CARBON ATOMS AND AN OIL SOLUBLE BASIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASIC ALKALINE EARTH METAL AROMATIC SULFONATE AND BASIC ALKALINE EARTH METAL ALKYL PHENATE, THE PROPORTIONS IN PARTS BY WEIGHT OF SAID SULFONATE OR PHENATE TO SAID DITHIOPHOSPHATE BEING ABOUT 1 TO 10/2, B. A BASIC ALKALINE EARTH METAL AROMATIC SULFONATE AND THE ALKALINE EARTH METAL CONDENSATION PRODUCT OF AN ALKYL-SUBSTITUTED PHENOL, SAID ALKYL GROUP HAVING ABOUT 1 TO 12 CARBON ATOMS, AND ALKANAL OF 1 TO 4 CARBON ATOMS AND AN ALKYLENE POLYAMINE REPRESENTED BY THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
183 words
A LUBRICATING FLUID COMPOSITION SUITABLE FOR USE IN BOTH AUTOMOTIVE AUTOMATIC TRANSMISSIONS AND AUTOMOTIVE HYPOID DIFFERENTIALS AND CHARACTERIZED BY A VISCOSITY INDEX OF AT LEAST ABOUT 125 AND A POUR POINT BELOW ABOUT -40*F. CONSISTING ESSENTIALLY OF: (I) A MAJOR AMOUNT OF BASE LUBRICATING OIL, (II) ABOUT 1 TO 10 WEIGHT PERCENT OF AN OIL-SOLUBLE COMPONENT SELECTED FROM THE GROUP CONSISTING OF A, B AND C BELOW: A. METAL DIALKYL DITHIOPHOSPHATE WHEREIN THE METAL HAS AN ATOMIC NUMBER OF 28 TO 30 AND THE ALKYL GROUP CONTAINS ABOUT 3 TO 12 CARBON ATOMS AND AN OIL SOLUBLE BASIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASIC ALKALINE EARTH METAL AROMATIC SULFONATE AND BASIC ALKALINE EARTH METAL ALKYL PHENATE, THE PROPORTIONS IN PARTS BY WEIGHT OF SAID SULFONATE OR PHENATE TO SAID DITHIOPHOSPHATE BEING ABOUT 1 TO 10/2, B. A BASIC ALKALINE EARTH METAL AROMATIC SULFONATE AND THE ALKALINE EARTH METAL CONDENSATION PRODUCT OF AN ALKYL-SUBSTITUTED PHENOL, SAID ALKYL GROUP HAVING ABOUT 1 TO 12 CARBON ATOMS, AND ALKANAL OF 1 TO 4 CARBON ATOMS AND AN ALKYLENE POLYAMINE REPRESENTED BY THE STRUCTURAL FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |