US3156652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic transmission fluid
Assignee: California Research LLC
•
Filing: 1961-09-29
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Granted: 1964-11-10
•
Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Edward G Foehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:34
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/046; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A POWER TRANSMISSION FLUID HAVING A VISCOSITY OF FROM ABOUT 75 TO 1000 SSU AT 100*F., CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE HAVING A VISCOSITY OF FROM 50 TO 400 SSU AT 100*F. AND FROM 0.10% TO 0.75% BY WEIGHT OF N-ACYLSARCOSINE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
52 words
A POWER TRANSMISSION FLUID HAVING A VISCOSITY OF FROM ABOUT 75 TO 1000 SSU AT 100*F., CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL BASE HAVING A VISCOSITY OF FROM 50 TO 400 SSU AT 100*F. AND FROM 0.10% TO 0.75% BY WEIGHT OF N-ACYLSARCOSINE OF THE GENERAL FORMULA:
References Cited (Backward Citations)
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Cited
US2851421A
Cited
US2681891A
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US2841555A
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US2961404A
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US3042612A
Cited
US3112232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |