US2809162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibited lubricant composition
Assignee: California Research LLC
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Filing: 1955-12-08
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Granted: 1957-10-08
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Expires: 1975-12-08
Abstract
No abstract record available.
Inventors
- 👤 Lowe Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:36
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/06; C10M2203/10; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2209/109; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/065; C10M2227/00; C10M2227/02; C10M2227/06; C10M2227/065; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2010/00; C10N2010/08; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PORTION OF A MINERAL LUBRICATING OIL IN COMBINATION WITH AN ALKALINE EARTH METAL PETROLEUM SULFONATE AND AN ALKALINE EARTH METAL ALKYL PHENATE, SAID COMBINATION BEING CORROSIVE TO METAL SURFACES IN NORMAL USE AND A MINOR PORTION, SUFFICIENT TO INHIBIT CORROSION OF THE REACTION PRODUCT OF 1 MOLE OF A PHTHALIC ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID AND TEREPHTHALIC ACID WITH FROM ABOUT 0.5 TO 5 MOLES OF A GLYCOL TITANATE SELECTED FROM THE GROUP CONSISTING OF TRIGLYCOL AND TETRAGLYCOL TITANATES, SAID GLYCOLS CONTAINING FROM 6 TO 10 CARBON ATOMS EACH.
Claim 2
Dependent Claim
99 words
A LUBRICANT COMPOSITION COMPRISING A MAJOR PORTION OF A MINERAL LUBRICATING OIL IN COMBINATION WITH AN ALKALINE EARTH METAL PETROLEUM SULFONATE AND AN ALKALINE EARTH METAL ALKYL PHENATE, SAID COMBINATION BEING CORROSIVE TO METAL SURFACES IN NORMAL USE AND A MINOR PORTION, SUFFICIENT TO INHIBIT CORROSION OF THE REACTION PRODUCT OF 1 MOLE OF A PHTHALIC ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID AND TEREPHTHALIC ACID WITH FROM ABOUT 0.5 TO 5 MOLES OF A GLYCOL TITANATE SELECTED FROM THE GROUP CONSISTING OF TRIGLYCOL AND TETRAGLYCOL TITANATES, SAID GLYCOLS CONTAINING FROM 6 TO 10 CARBON ATOMS EACH.
References Cited (Backward Citations)
US2606872A
Cited
US2643262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |