Patent US2628939A successfully refreshed from Google Patents.
US2628939A
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US
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Mineral oil composition
Assignee: Monsanto Chemicals Ltd
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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 18:14
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.
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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) | 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 |