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US2677620A
Expired / Lapsed
US
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Bituminous composition
Assignee: Standard Oil Co
•
Filing: 1950-08-09
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Granted: 1954-05-04
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Expires: 1970-08-09
Abstract
No abstract record available.
Inventors
- 👤 Norman E Lemmon
- 👤 Robert E Karll
- 👤 Feller Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A COMPOSITION OF MATTER COMPRISING A BITUMEN AND A SMALL AMOUNT OF THE PHOSPHORUS- AND SULFUR-CONTAINING UNNEUTRALIZED REACTION PRODUCT OF A PHOSPHORUS SULFIDE AND AN OLEFIN HYROCARBON HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 200 AND 700, SAID REACTION PRODUCT BEING OBTAINED BY REACTING FROM ABOUT 1% TO ABOUT 50% OF A PHOSPHORUS SULFIDE WITH SAID OLEFIN AT A TEMPERATURE OF FROM ABOUT 200* F. TO ABOUT 600* F., HYDROLYZING THE REACTION PRODUCT AND REMOVING FROM SAID HYDROLYZED REACTION PRODUCT INORGANIC ACIDS OF PHOSPHORUS PRODUCED IN SAID HYDROLYSIS.
Claim 2
Dependent Claim
87 words
A COMPOSITION OF MATTER COMPRISING A BITUMEN AND A SMALL AMOUNT OF THE PHOSPHORUS- AND SULFUR-CONTAINING UNNEUTRALIZED REACTION PRODUCT OF A PHOSPHORUS SULFIDE AND AN OLEFIN HYROCARBON HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 200 AND 700, SAID REACTION PRODUCT BEING OBTAINED BY REACTING FROM ABOUT 1% TO ABOUT 50% OF A PHOSPHORUS SULFIDE WITH SAID OLEFIN AT A TEMPERATURE OF FROM ABOUT 200* F. TO ABOUT 600* F., HYDROLYZING THE REACTION PRODUCT AND REMOVING FROM SAID HYDROLYZED REACTION PRODUCT INORGANIC ACIDS OF PHOSPHORUS PRODUCED IN SAID HYDROLYSIS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |