US2671049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Odor improvement of petroleum oils
Assignee: Standard Oil Co
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Filing: 1951-06-30
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Granted: 1954-03-02
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Expires: 1971-06-30
Abstract
No abstract record available.
Inventors
- 👤 Russell H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A COMBINATION PROCESS FOR THE ELIMINATION OF MERCAPTANS AND CYCLIC-SULFIDES FROM A PETROLEUM OIL CONTAINING APPRECIABLE AMOUNTS OF THESE ORGANIC-SULFUR COMPOUNDS, WHICH PROCESS COMPRISES (1) TREATING SAID OIL UNDER CONDITIONS WHEREIN ESSENTIALLY ONLY MERCAPTANS ARE ELIMINATED FROM SAID OIL, (2) CONTACTING SAID TREATED OIL FROM (1) WITH A MERCURIC SALT, IN AN AMOUNT OF BETWEEN ABOUT 1 AND ABOUT 3 MOLS PER MOL OF CYCLIC-SULFIDES IN SAID TREATED OIL, AND (3) SEPARATING AN OIL-INSOLUBLE MERCYRY SALT-CYCLIC-SULFIDE COMPLES FROM AN ASSEMBLY CYCLIC-SULFIDE-FREE OIL.
Claim 2
Dependent Claim
82 words
A COMBINATION PROCESS FOR THE ELIMINATION OF MERCAPTANS AND CYCLIC-SULFIDES FROM A PETROLEUM OIL CONTAINING APPRECIABLE AMOUNTS OF THESE ORGANIC-SULFUR COMPOUNDS, WHICH PROCESS COMPRISES (1) TREATING SAID OIL UNDER CONDITIONS WHEREIN ESSENTIALLY ONLY MERCAPTANS ARE ELIMINATED FROM SAID OIL, (2) CONTACTING SAID TREATED OIL FROM (1) WITH A MERCURIC SALT, IN AN AMOUNT OF BETWEEN ABOUT 1 AND ABOUT 3 MOLS PER MOL OF CYCLIC-SULFIDES IN SAID TREATED OIL, AND (3) SEPARATING AN OIL-INSOLUBLE MERCYRY SALT-CYCLIC-SULFIDE COMPLES FROM AN ASSEMBLY CYCLIC-SULFIDE-FREE 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) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |