Patent US2517934A successfully refreshed from Google Patents.
US2517934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alkyl disulfide
Assignee: Phillips Petroleum Co
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Filing: 1946-11-18
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Granted: 1950-08-08
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Expires: 1966-11-18
Abstract
No abstract record available.
Inventors
- 👤 Walter A Schulze
- 👤 Jr Joseph P Lyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:47
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22; C07C319/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR THE PREPARATION OF ALKYL DISULFIDES WHICH COMPRISES CONTINUOUSLY CIRCULATING A SOLUTION OF A MERCAPTAN DISSOLVED IN ALKYL DISULFIDE PRODUCED IN THE POROCESS THROUGH A CATALYTIC OXIDATION ZONE IN THE PRESENCE OF DISSOLVED OXYGEN-CONTAINING GAS IN CONTACT WITH AN OXIDATION CATALYST TO EFFECT OXIDATION OF THE MERCAPTAN TO THE CORRESPONDING DISULFIDE, AT LEAST PARTIALLY DE-
Claim 2
Dependent Claim
57 words
A PROCESS FOR THE PREPARATION OF ALKYL DISULFIDES WHICH COMPRISES CONTINUOUSLY CIRCULATING A SOLUTION OF A MERCAPTAN DISSOLVED IN ALKYL DISULFIDE PRODUCED IN THE POROCESS THROUGH A CATALYTIC OXIDATION ZONE IN THE PRESENCE OF DISSOLVED OXYGEN-CONTAINING GAS IN CONTACT WITH AN OXIDATION CATALYST TO EFFECT OXIDATION OF THE MERCAPTAN TO THE CORRESPONDING DISULFIDE, AT LEAST PARTIALLY DE-
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) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |