Patent US5693877A successfully refreshed from Google Patents.
US3039855A
Expired / Lapsed
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Oxidation of sulfur compounds
Assignee: Universal Oil Products Co
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Filing: 1961-03-06
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Granted: 1962-06-19
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Urban Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:45
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/10; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/05; C07; C07C; C07C319/00; C07C319/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS FOR OXIDIZING A SULFUR COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN SULFIDE AND MERCAPTANS TO AN OXIDATION PRODUCT SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL SULFUR AND DISULFIDES, WHICH COMPRISES REACTING SAID SULFUR COMPOUND WITH AN OXIDIZING AGENT IN THE PRESENCE OF A PHTHALOCYANINE CATALYST AT A PH OF NOT GREATER THAN 7.
Claim 2
Dependent Claim
56 words
A PROCESS FOR OXIDIZING A SULFUR COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROGEN SULFIDE AND MERCAPTANS TO AN OXIDATION PRODUCT SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL SULFUR AND DISULFIDES, WHICH COMPRISES REACTING SAID SULFUR COMPOUND WITH AN OXIDIZING AGENT IN THE PRESENCE OF A PHTHALOCYANINE CATALYST AT A PH OF NOT GREATER THAN 7.
References Cited (Backward Citations)
US2853432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |