US2577824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of removing mercaptans from hydrocarbons with alkali impregnated charcoal
Assignee: Standard Oil Co
•
Filing: 1948-08-11
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Granted: 1951-12-11
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Expires: 1968-08-11
Abstract
No abstract record available.
Inventors
- 👤 Harrison M Stine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:46
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE PROCESS OF TREATING MERCAPTAN-CONTAINING HYDROCARBONS TO REMOVE MERCAPTAN SULFUR THEREFROM, WHICH COMPRISES CONTACTING SAID IMPREGNATED WITH AN AQUEOUS SOLUTION OF A STRONGLY ALKALINE BASE, SAID MERCAPTANS BEING ADSORBED ON SAID CHARCOAL IN THE FORM OF MERCAPTIDES, AND SEPARATING SAID HYDROCARBONS OF REDUCED SULFUR CONTENT FROM THE MERCAPTIDECONTAINING CHARCOAL.
Claim 2
Dependent Claim
49 words
THE PROCESS OF TREATING MERCAPTAN-CONTAINING HYDROCARBONS TO REMOVE MERCAPTAN SULFUR THEREFROM, WHICH COMPRISES CONTACTING SAID IMPREGNATED WITH AN AQUEOUS SOLUTION OF A STRONGLY ALKALINE BASE, SAID MERCAPTANS BEING ADSORBED ON SAID CHARCOAL IN THE FORM OF MERCAPTIDES, AND SEPARATING SAID HYDROCARBONS OF REDUCED SULFUR CONTENT FROM THE MERCAPTIDECONTAINING CHARCOAL.
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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |