US2779739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine lubricating oil compositions
Assignee: —
•
Filing: —
•
Granted: 1957-01-29
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Expires: 1974-01-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:54
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M2203/00; C10M2203/10; C10M2203/1006; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/126; C10M2207/127; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2030/00; C10N2030/12; C10N2030/24; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL OIL OF TURBINE LUBRICATING GRADE IN MAJOR AMOUNT BASED ON THE WEIGHT OF THE COMPOSITION HAVING DISSOLVED THEREIN FROM ABOUT 0.01 TO ABOUT 1.0 PERCENT BY WEIGHT OF A COMBINATION ADDITIVE CONSISTING ESSENTIALLY OF A MIXTURE OF MONO- AND DI-LAURYL ACID PHOSPHATE AND A FATTY ACID FROM THE GROUP CONSISTING OF CAPRYLIC ACID AND LAURIC ACID IN A WEIGHT RATIO OF ONE PART OF SAID MIXTURE OF PHOSPHATES TO FROM ABOUT ONE TO ABOUT FIVE PARTS OF THE FATTY ACID.
Claim 2
Dependent Claim
86 words
A LUBRICATING COMPOSITION COMPRISING A MINERAL OIL OF TURBINE LUBRICATING GRADE IN MAJOR AMOUNT BASED ON THE WEIGHT OF THE COMPOSITION HAVING DISSOLVED THEREIN FROM ABOUT 0.01 TO ABOUT 1.0 PERCENT BY WEIGHT OF A COMBINATION ADDITIVE CONSISTING ESSENTIALLY OF A MIXTURE OF MONO- AND DI-LAURYL ACID PHOSPHATE AND A FATTY ACID FROM THE GROUP CONSISTING OF CAPRYLIC ACID AND LAURIC ACID IN A WEIGHT RATIO OF ONE PART OF SAID MIXTURE OF PHOSPHATES TO FROM ABOUT ONE TO ABOUT FIVE PARTS OF THE FATTY ACID.
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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |