US2758971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blending agents for mineral oils
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1952-05-20
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Granted: 1956-08-14
•
Expires: 1972-05-20
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:57
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2608; C10M; C10M137/00; C10M137/12; C10M137/14; C10L1/2616; C10M2203/00; C10M2203/10; C10M2205/00; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2215/00; C10M2215/10; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/065; C10M2223/12; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A LUBRICATING OIL COMPOSITION CONTAINING DISSOLVED THEREIN IN A RANGE OF ABOUT 0.01 TO 15% BY WEIGHT OF THE CALCIUM SALT OF THE PARTIAL ESTER OF 1-HYDROXY-PHOSPHONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
31 words
A LUBRICATING OIL COMPOSITION CONTAINING DISSOLVED THEREIN IN A RANGE OF ABOUT 0.01 TO 15% BY WEIGHT OF THE CALCIUM SALT OF THE PARTIAL ESTER OF 1-HYDROXY-PHOSPHONIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2228671A
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US2311305A
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US2279502A
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GB549296A
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GB552061A
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US2420893A
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US2476813A
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US2506310A
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US2579810A
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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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |