US2640053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounded lubricating oil
Assignee: Standard Oil Development Co
•
Filing: 1949-11-23
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Granted: 1953-05-26
•
Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Max W Hill
- 👤 Robert H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:05
CPC Classifications
D; D06; D06N; D06N1/00; A; A01; A01N; A01N25/00; A01N25/30; C; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C08; C08K; C08K5/00; C08K5/49; C08K5/5398; C09; C09K; C09K23/00; C09K23/14; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C10M2201/00; C10M2201/04; C10M2201/043; C10M2203/00; C10M2203/10; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/027; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
AS A NEW COMPOSITION OF MATTER A PRODUCT OBTAINED BY REACTING ABOUT ONE MOLECULAR PROPORTION OF A PHOSPHORUS SULFIDE WITH TWO TO FIVE MOLECULAR PROPORTIONS OF A HYDROCARBON AND FURTHER REACTING THE ACIDIC PRODUCT THUS FORMED WITH 0.1% TO 50% OF ITS WEIGHT OF A HYDROCARBON CONTAINING AT LEAST ONE OLEFINIC DOUBLE BOND.
Claim 2
Dependent Claim
53 words
AS A NEW COMPOSITION OF MATTER A PRODUCT OBTAINED BY REACTING ABOUT ONE MOLECULAR PROPORTION OF A PHOSPHORUS SULFIDE WITH TWO TO FIVE MOLECULAR PROPORTIONS OF A HYDROCARBON AND FURTHER REACTING THE ACIDIC PRODUCT THUS FORMED WITH 0.1% TO 50% OF ITS WEIGHT OF A HYDROCARBON CONTAINING AT LEAST ONE OLEFINIC DOUBLE BOND.
Claim 3
Independent Claim
39 words
THE METHOD WHICH COMPRISES REACTING ONE MOLECULAR PROPORTION OF A SULFIDE OF PHOSPHORUS WITH TWO TO FIVE MOLECUALR PROPORTIONS OF A HYDROCARBON AND FURTHER REACTING THE PRODUCT THUS FORMED WITH A HYDROCARBON CONTAINING AT LEAST ONE OLEFINIC DOUBLE BOND.
Claim 4
Independent Claim
39 words
THE METHOD WHICH COMPRISES REACTING ONE MOLECULAR PROPORTION OF A SULFIDE OF PHOSPHORUS WITH TWO TO FIVE MOLECUALR PROPORTIONS OF A HYDROCARBON AND FURTHER REACTING THE PRODUCT THUS FORMED WITH A HYDROCARBON CONTAINING AT LEAST ONE OLEFINIC DOUBLE BOND.
References Cited (Backward Citations)
US2356073A
Cited
US2315529A
Cited
US2379312A
Cited
US2413648A
Cited
US2483600A
Cited
US2507731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |