Patent US2644811A successfully refreshed from Google Patents.
US2644811A
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Sulfurization of oxygenated aliphatic compounds
Assignee: Standard Oil Co
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Filing: 1949-07-30
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Granted: 1953-07-07
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Expires: 1969-07-30
Abstract
No abstract record available.
Inventors
- 👤 Beretvas Helen Sellei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:29
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M2219/00; C10M2219/02; C10M2219/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF SULFURIZING A SUBSTANTIALLY SATURATED OXYGENATED ALIPHATIC COMPOUND HAVING A SMALL DEGREE FO UNSATURATION BUT HAVING A HANUS IODINE NUMBER OF NOT MORE THAN ABOUT 45, COMPRISING REACTING SAID OXYGENATED COMPOUND WITH SULFUR CHLORIDE, AND FROM ABOUT 5% TO ABOUT 50% BY VOLUME OF WATER AT A TEMPERATURE OF FROM ABOUT 40* F. TO ABOUT 250* F. IN THE ABSENCE OF ADDED HYDROGEN SULFIDE.
Claim 2
Independent Claim
66 words
THE METHOD OF SULFURIZING A SUBSTANTIALLY SATURATED OXYGENATED ALIPHATIC COMPOUND HAVING A SMALL DEGREE FO UNSATURATION BUT HAVING A HANUS IODINE NUMBER OF NOT MORE THAN ABOUT 45, COMPRISING REACTING SAID OXYGENATED COMPOUND WITH SULFUR CHLORIDE, AND FROM ABOUT 5% TO ABOUT 50% BY VOLUME OF WATER AT A TEMPERATURE OF FROM ABOUT 40* F. TO ABOUT 250* F. IN THE ABSENCE OF ADDED HYDROGEN SULFIDE.
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) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |