Patent US2507731A successfully refreshed from Google Patents.
US2507731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of reacting phosphorus sulfide and olefinic hydrocarbon
Assignee: Standard Oil Co
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Filing: 1947-10-17
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Granted: 1950-05-16
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Expires: 1967-10-17
Abstract
No abstract record available.
Inventors
- 👤 Lawson W Mixon
- 👤 Edward N Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN THE PROCESS OF PREPARING A NEUTRALIZED REACTION PRODUCT OF A PHOSPHORUS SULFIDE AND AN OLEFINIC HYDROCARBON HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 150 IN WHICH THE OLEFINIC HYDROCARBON IS REACTED WITH FROM ABOUT 1% TO ABOUT 50% OF A PHOSPHORUS SULFIDE AT A TEMPERATURE OF FROM ABOUT 100*F., TO 500*F., AND THE RESULTANT REACTION PRODUCT NEUTRALIZED, THE IMPROVEMENT COMPRISING CARRYING OUT THE REACTION IN THE PRESENCE OF FROM ABOUT 5% TO ABOUT 100% BY WEIGHT, BASED ON THE OLEFINIC HYDROCARBON, OF AN AROMATIC HYDROCARBON.
Claim 2
Dependent Claim
87 words
IN THE PROCESS OF PREPARING A NEUTRALIZED REACTION PRODUCT OF A PHOSPHORUS SULFIDE AND AN OLEFINIC HYDROCARBON HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 150 IN WHICH THE OLEFINIC HYDROCARBON IS REACTED WITH FROM ABOUT 1% TO ABOUT 50% OF A PHOSPHORUS SULFIDE AT A TEMPERATURE OF FROM ABOUT 100*F., TO 500*F., AND THE RESULTANT REACTION PRODUCT NEUTRALIZED, THE IMPROVEMENT COMPRISING CARRYING OUT THE REACTION IN THE PRESENCE OF FROM ABOUT 5% TO ABOUT 100% BY WEIGHT, BASED ON THE OLEFINIC HYDROCARBON, OF AN AROMATIC HYDROCARBON.
References Cited (Backward Citations)
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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) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |