US2731418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic transmission fluid
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-08-26
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Granted: 1956-01-17
•
Expires: 1972-08-26
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Howell
- 👤 Jones I Wasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:19
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/12; C10M2223/121; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A LUBRICANT COMPOSITION OF HIGH DETERGENCY AND SUPERIOR ANTI-FRICTION PROPERTIES, COMPRISING A MAJOR PROPORTION OF A LIQUID LUBRICATING OIL BASE, 1 TO 6% BY WEIGHT, BASED ON THE TOTAL COMPOSITION OF AN H2S FREE ALKALINE EARTH METAL SALT OF ALKYL PHENOL SULFIDE AS A DETERGENT, 0.2 TO 1% OF FATTY ACID OF THE C12 TO C22 RANGE, AND 0.2 TO 0.5% OF C8 TO C24 ALKYL MERCAPTO ACETIC ACID.
Claim 2
Dependent Claim
69 words
A LUBRICANT COMPOSITION OF HIGH DETERGENCY AND SUPERIOR ANTI-FRICTION PROPERTIES, COMPRISING A MAJOR PROPORTION OF A LIQUID LUBRICATING OIL BASE, 1 TO 6% BY WEIGHT, BASED ON THE TOTAL COMPOSITION OF AN H2S FREE ALKALINE EARTH METAL SALT OF ALKYL PHENOL SULFIDE AS A DETERGENT, 0.2 TO 1% OF FATTY ACID OF THE C12 TO C22 RANGE, AND 0.2 TO 0.5% OF C8 TO C24 ALKYL MERCAPTO ACETIC ACID.
References Cited (Backward Citations)
US2203102A
Cited
US2409686A
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US2451345A
Cited
US2516119A
Cited
US2474604A
Cited
US2528347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |