US2497138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying sulfurized hydrocarbon products
Assignee: Standard Oil Development Co
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Filing: 1947-10-29
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Granted: 1950-02-14
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Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Dilworth T Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:42
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M135/04; C10M2219/00; C10M2219/02; C10M2219/022
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
A METHOD OF DECHLORINATING SULFURIZED DIISOBUTYLENE WHICH HAS BEEN OBTAINED BY REACTING DIISOBUTYLENE WITH SULFUR MONOCHLORIDE WHICH COMPRISES HEATING SAID SULFURIZED DIISOBUTYLENE WITH ABOUT 10% BY WEIGHT OF 2-ETHYLHEXYL ALCOHOL AT A TEMPERATURE OF ABOUT 230* TO 280*F. FOR A PERIOD OF ABOUT 4 HOURS.
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) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |