US3595778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization process including an oxidation step with ozone and a vanadium catalyst
Assignee: Texaco Inc
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Filing: 1968-12-16
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Granted: 1971-07-27
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Expires: 1988-12-16
Abstract
Abstract A DESULFURIZATION PROCESS FOR THE REDUCTION OF SULFUR IN A SULFUR CONTAINING HYDROCARBON OIL BY CONTACTING THE SULFUR CONTAINING HYDROCARBON OIL WITH OZONE IN THE PRESENCE OF A GROUP IV-B, V-B OR GROUP VI-B METAL FOLLOWED BY SULFUR REDUCTION UTILIZING FOR EXAMPLE A BASE TREATMENT, A THERMAL TREATMENT OR A HYDROSULFURIZATION TREATMENT.
Inventors
- 👤 Richard D Smetana
- 👤 Sheldon Herbstman
- 👤 Theodore C Mead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:45
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |