US2628939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil composition
Assignee: Monsanto Chemicals Ltd
•
Filing: 1947-11-21
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Granted: 1953-02-17
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Expires: 1967-11-21
Abstract
No abstract record available.
Inventors
- 👤 Edward S Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:54
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M2207/00; C10M2207/28; C10M2207/30; C10M2207/302; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2211/00; C10M2211/02; C10M2211/04; C10M2211/044; C10M2211/08; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/06; C10M2219/062; C10M2221/00; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/12; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A COMPOSITION OF MATTER USEFUL AS A LUBRICANT CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF MINERAL OIL THE LUBRICATING PROPERTIES OF WHICH ARE ENHANCED IN THE RESPECT THAT THE WEARING OF LUBRICATED METAL SURFACES IS REDUCED BY HAVING INCORPORATED THEREIN IN AN AMOUNT EFFECTIVE TO REDUCE WEAR AND ADDITIVE COMPOSITION CONTAINING 5.8%-11.4% SULFUR AND 0.11%-0.80% PHOSPHORUS SUPPLIED ESSENTIALLY BY A SULFURIZED AND PHOSPHORIZED ESTER OF THE GROUP CONSISTING OF ETHYLENE GLYCOL DIOLEATE, DIETHYLENE GLYCOL DIOLEATE AND DITHIO DIGLYCOL DIOLEATE OBTAINED BY HEATING WITH SULFUR AT 150200* C. AND PHOSPHORIZING AT 100-125* C.
Claim 2
Dependent Claim
92 words
A COMPOSITION OF MATTER USEFUL AS A LUBRICANT CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF MINERAL OIL THE LUBRICATING PROPERTIES OF WHICH ARE ENHANCED IN THE RESPECT THAT THE WEARING OF LUBRICATED METAL SURFACES IS REDUCED BY HAVING INCORPORATED THEREIN IN AN AMOUNT EFFECTIVE TO REDUCE WEAR AND ADDITIVE COMPOSITION CONTAINING 5.8%-11.4% SULFUR AND 0.11%-0.80% PHOSPHORUS SUPPLIED ESSENTIALLY BY A SULFURIZED AND PHOSPHORIZED ESTER OF THE GROUP CONSISTING OF ETHYLENE GLYCOL DIOLEATE, DIETHYLENE GLYCOL DIOLEATE AND DITHIO DIGLYCOL DIOLEATE OBTAINED BY HEATING WITH SULFUR AT 150200* C. AND PHOSPHORIZING AT 100-125* C.
References Cited (Backward Citations)
US2422630A
Cited
US2211306A
Cited
US2211231A
Cited
US2225365A
Cited
US2179067A
Cited
US2186646A
Cited
US2415838A
Cited
US2441587A
Cited
US2542161A
Cited
US2483600A
Cited
US2541789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |