US2543838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen removal from absorption oils
Assignee: Standard Oil Development Co
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Filing: 1947-09-04
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Granted: 1951-03-06
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Expires: 1967-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:38
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11; C10; C10G; C10G5/00; C10G5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IMPROVED PROCESS FOR SEGREGATING HYDROCARBON CONSTITUENTS FREE OF OXYGEN FROM TWO HYDROCARBON STREAMS, ONE OF WHICH STREAMS CONTAINS OXYGEN, COMPRISING THE STEPS OF CONTACTING A FIRST HYDROCARBON STREAM CONTAINING OXYGEN WITH AN ABSORPTION OIL UNDER CONDITIONS TO ABSORB HYDROCARBON CONSTITUENTS, THEN CONTACTING SAID ABSORPTION OIL CONTAINING ABSORBED HYDROCARBON CONSTITUENTS FROM SAID FIRST HYDROCARBON STREAM WITH A SECOND HYDROCARBON STREAM FREE OF OXYGEN UNDER CONDITIONS TO ABSORB HYDROCARBON CONSTITUENTS FROM THE SAID SECOND STREAM, AND THEREAFTER RECOVERING SAID ABSORBED HYDROCARBON CONSTITUENTS FROM THE ABSORPTION OIL.
Claim 2
Dependent Claim
84 words
IMPROVED PROCESS FOR SEGREGATING HYDROCARBON CONSTITUENTS FREE OF OXYGEN FROM TWO HYDROCARBON STREAMS, ONE OF WHICH STREAMS CONTAINS OXYGEN, COMPRISING THE STEPS OF CONTACTING A FIRST HYDROCARBON STREAM CONTAINING OXYGEN WITH AN ABSORPTION OIL UNDER CONDITIONS TO ABSORB HYDROCARBON CONSTITUENTS, THEN CONTACTING SAID ABSORPTION OIL CONTAINING ABSORBED HYDROCARBON CONSTITUENTS FROM SAID FIRST HYDROCARBON STREAM WITH A SECOND HYDROCARBON STREAM FREE OF OXYGEN UNDER CONDITIONS TO ABSORB HYDROCARBON CONSTITUENTS FROM THE SAID SECOND STREAM, AND THEREAFTER RECOVERING SAID ABSORBED HYDROCARBON CONSTITUENTS FROM THE ABSORPTION OIL.
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) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |