US2504552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic torque converter fluid
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1945-01-25
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Granted: 1950-04-18
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Expires: 1965-01-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:28
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A COMPOSITION, ADAPTED FOR USE AS A POWER TRANSMISSION FLUID IN MODERN HYDRAULIC TORQUE CONVERTERS, COMPRISING AT LEAST ABOUT 90% BY WEIGHT OF A MINERAL OIL HAVING A VISCOSITY OF ABOUT 30 TO 120 S. U. S. AT 100*F. AND A FLASH POINT OF AT LEAST 300*F. AND AT LEAST ONE DETERGENT ADDITIVE FROM THE GROUP CONSISTING OF OILSOLUBLE METAL SALTS OF SULPHONIC ACIDS, OIL-SOLUBLE METAL SALTS OF ALKYL PHENOL THIOETHERS, OIL-SOLUBLE METAL SALTS OF WAX ALKYLATED PHENOLS AND OILSOLUBLE METAL SALTS OF FATTY ACIDS IN AN AMOUNT SUFFICIENT TO IMPART DETERGENT PROPERTIES TO SAID OIL.
Claim 2
Dependent Claim
96 words
A COMPOSITION, ADAPTED FOR USE AS A POWER TRANSMISSION FLUID IN MODERN HYDRAULIC TORQUE CONVERTERS, COMPRISING AT LEAST ABOUT 90% BY WEIGHT OF A MINERAL OIL HAVING A VISCOSITY OF ABOUT 30 TO 120 S. U. S. AT 100*F. AND A FLASH POINT OF AT LEAST 300*F. AND AT LEAST ONE DETERGENT ADDITIVE FROM THE GROUP CONSISTING OF OILSOLUBLE METAL SALTS OF SULPHONIC ACIDS, OIL-SOLUBLE METAL SALTS OF ALKYL PHENOL THIOETHERS, OIL-SOLUBLE METAL SALTS OF WAX ALKYLATED PHENOLS AND OILSOLUBLE METAL SALTS OF FATTY ACIDS IN AN AMOUNT SUFFICIENT TO IMPART DETERGENT PROPERTIES TO SAID OIL.
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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) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |