Patent US2501064A successfully refreshed from Google Patents.
US2501064A
Expired / Lapsed
US
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Separation of aromatic and sulfur compounds
Assignee: Standard Oil Co
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Filing: 1946-07-02
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Granted: 1950-03-21
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Expires: 1966-07-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Lien
- 👤 Bernard L Evering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:17
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/08; B; B01; B01J; B01J27/00; B01J27/06; C07; C07C; C07C1/00; C07C1/32; C07C1/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE PROCESS OF REGENERATING AROMATIC HYDROCARBONS FROM A SOLUTION OF AROMATIC HYDROCARBONS AND SULFUR COMPOUNDS IN LIQUID HF-BF3, SAID SOLUTION COMPRISING CO-ORDINATION COMPOUNDS OF BF3 AND HF WITH AROMATIC HYDROCARBONS AND ORGANIC SULFUR COMPOUNDS WHICH PROCESS COMPRISES SUBJECTING SAID SOLUTION AT A DISSOCIATIVE DISTILLATION OPERATION AT A TEMPERATURE BETWEEN ABOUT 100*F. AND ABOUT 200*F., SEPARATING A DISTILLATE COMPRISING HF AND BF3 FROM SAID DISTILLATION OPERATION, SEPARATING A DISTILLATION RESIDUE COMPRISING FREE AROMATIC HYDROCARBONS
Claim 2
Dependent Claim
73 words
THE PROCESS OF REGENERATING AROMATIC HYDROCARBONS FROM A SOLUTION OF AROMATIC HYDROCARBONS AND SULFUR COMPOUNDS IN LIQUID HF-BF3, SAID SOLUTION COMPRISING CO-ORDINATION COMPOUNDS OF BF3 AND HF WITH AROMATIC HYDROCARBONS AND ORGANIC SULFUR COMPOUNDS WHICH PROCESS COMPRISES SUBJECTING SAID SOLUTION AT A DISSOCIATIVE DISTILLATION OPERATION AT A TEMPERATURE BETWEEN ABOUT 100*F. AND ABOUT 200*F., SEPARATING A DISTILLATE COMPRISING HF AND BF3 FROM SAID DISTILLATION OPERATION, SEPARATING A DISTILLATION RESIDUE COMPRISING FREE AROMATIC HYDROCARBONS
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |