US3068218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfochlorination of hydrocarbons
Assignee: Standard Oil Co
•
Filing: 1961-02-20
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Granted: 1962-12-11
•
Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Beretvas Helen Sellei
- 👤 Richard S Juriga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:13
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
THE METHOD WHICH COMPRISES SULFOCHLORINATING A PROPYLENE TETRAMER IN THE PRESENCE OF FROM ABOUT 35 TO ABOUT 65 VOLUME PERCENT OF A MIXTURE OF WATER AND ISOPROPYL ALCOHOL AT A TEMPERATURE IN THE RANGE OF 10*C. TO 100*C. FOR A PERIOD OF 10 MINUTES TO 2 HOURS USING SULFUR MONOCHLORIDE AS THE SULFOCHLORINATING REACTANT, SAID MIXTURE HAVING A VOLUME RATIO OF WATER-ISOPROPYL ALCOHOL OF ABOUT 1:1, REFLUXING THE RESULTING SULFOCHLORINATED PROPYLENE TETRAMER IN THE PRESENCE OF FROM ABOUT 20 TO ABOUT 100 VOLUME PERCENT OF A MIXTURE OF WATER AND WATER-MISCIBLE ALCOHOL FOR A PERIOD OF AT LEAST TEN MINUTES, AND RECOVERING THE REFLUXED SULFOCHLORINATED PROPYLENE TETRAMER AS A PRODUCT.
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |