US2976238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-based compositions
Assignee: Castrol Ltd
•
Filing: 1957-12-19
•
Granted: 1961-03-21
•
Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Elliott John Scotchford
- 👤 Edwards Eric Descamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:06
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/18; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/066; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2227/00; C10M2227/09; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/25; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/26; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN OIL-BASED COMPOSITION CONSISTING ESSENTIALLY OF A LUBRICATING OIL HAVING INCORPORATED THEREIN FROM 2% TO 30% BY WEILGHT OF AN OIL-SOLUBLE COMPLEX AMMINO COMPOUND HAVING THE GENERAL FORMULA MXAYB2, WHEREIN M IS SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM, COLBALT, TIN, LEAD, NICKEL AND CHROMIUM, A IS SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
54 words
AN OIL-BASED COMPOSITION CONSISTING ESSENTIALLY OF A LUBRICATING OIL HAVING INCORPORATED THEREIN FROM 2% TO 30% BY WEILGHT OF AN OIL-SOLUBLE COMPLEX AMMINO COMPOUND HAVING THE GENERAL FORMULA MXAYB2, WHEREIN M IS SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM, COLBALT, TIN, LEAD, NICKEL AND CHROMIUM, A IS SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
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US2737492A
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US2736658A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |