US2798045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: Shell Development Co
•
Filing: 1954-09-27
•
Granted: 1957-07-02
•
Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Frank A M Buck
- 👤 Jr George T Coker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:51
CPC Classifications
C; C10; C10M; C10M163/00; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2205/00; C10M2205/04; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/101; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/061; C10M2223/063; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A LUBRICATING COMPOSITION COMPRISING A MAJORR AMOUNT OF A MINERAL LUBRICATING OIL CONTAINING ABOUT 2-5% OF AN OIL-SOLUBLE BASIC CALCIUM PETROLEUM SULFONATE, ABOUT 1-2% OF A MIXTURE OF ZINC DIMETHYLCYCLOHEXYL DITHIOPHOSPHATE AND A P2S5-TERPENE-REACTION PRODUCT IN THE RATIO OF 5-1 RESPECTIVELY, AND ABOUT 0.5-1% OF N-C12-18 ALKYL PROPYLENE DIAMINE OLEATE.
Claim 2
Dependent Claim
50 words
A LUBRICATING COMPOSITION COMPRISING A MAJORR AMOUNT OF A MINERAL LUBRICATING OIL CONTAINING ABOUT 2-5% OF AN OIL-SOLUBLE BASIC CALCIUM PETROLEUM SULFONATE, ABOUT 1-2% OF A MIXTURE OF ZINC DIMETHYLCYCLOHEXYL DITHIOPHOSPHATE AND A P2S5-TERPENE-REACTION PRODUCT IN THE RATIO OF 5-1 RESPECTIVELY, AND ABOUT 0.5-1% OF N-C12-18 ALKYL PROPYLENE DIAMINE OLEATE.
References Cited (Backward Citations)
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US2261047A
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US2493216A
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US2417876A
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US2493483A
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US2689846A
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US2662856A
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US2736658A
Cited
US2723235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |