Patent US3112258A successfully refreshed from Google Patents.
US3112258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the recovery of minor amounts of solvent from solventextracted hydrocarbons
Assignee: Standard Oil Co
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Filing: 1958-11-12
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Granted: 1963-11-26
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Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Harold A Strecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:06
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/12; C10G21/20; C10G21/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR REMOVING PHENYLETHANOLAMINE FROM A HYDROCARBON LIQUID STREAM OBTAINED IN THE SELECTIVE SOLVENT EXTRACTION OF CATALYTIC REFORMATE WITH PHENYLETHANOLAMINE, SAID STREAM CONTAINING FROM ABOUT 0.001 TO ABOUT 5% PHENYLETHANOLAMINE, COMPRISING THE STEPS OF INTRODUCING SAID LIQUID HYDROCARBON STREAM INTO A CLOSED VESSEL CONTAINING A BED OF ADSORBENT MATERIAL, CONTACTING SAID HYDROCARBON STREAM WITH SAID BED AT A TEMPERATURE UNDER 250*F., AND RECOVERING THE HYDROCARBON STREAM SUBSTANTIALLY FREE FROM SAID PHENYLETHANOLAMINE FROM SAID VESSEL.
Claim 2
Dependent Claim
75 words
A PROCESS FOR REMOVING PHENYLETHANOLAMINE FROM A HYDROCARBON LIQUID STREAM OBTAINED IN THE SELECTIVE SOLVENT EXTRACTION OF CATALYTIC REFORMATE WITH PHENYLETHANOLAMINE, SAID STREAM CONTAINING FROM ABOUT 0.001 TO ABOUT 5% PHENYLETHANOLAMINE, COMPRISING THE STEPS OF INTRODUCING SAID LIQUID HYDROCARBON STREAM INTO A CLOSED VESSEL CONTAINING A BED OF ADSORBENT MATERIAL, CONTACTING SAID HYDROCARBON STREAM WITH SAID BED AT A TEMPERATURE UNDER 250*F., AND RECOVERING THE HYDROCARBON STREAM SUBSTANTIALLY FREE FROM SAID PHENYLETHANOLAMINE FROM SAID VESSEL.
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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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |