US2415904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of oxidizing hydrogen sulfide
Assignee: Lion Oil Co
•
Filing: 1942-11-26
•
Granted: 1947-02-18
•
Expires: 1962-11-26
Abstract
No abstract record available.
Inventors
- 👤 William W Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:44
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/48; C01B17/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1000732A
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US1586508A
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CH94914A
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GB194879A
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US1546048A
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US1678630A
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GB237257A
Cited
FR609931A
Cited
US1939018A
Cited
US2003442A
Cited
US1917351A
Cited
US2258305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |