US3595805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam reforming with preliminary hydrodesulfurization
Assignee: Engelhard Minerals and Chemicals Corp
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Filing: 1968-07-17
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Granted: 1971-07-27
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Expires: 1988-07-17
Abstract
Abstract A COMBINATION PROCESS FOR THE DESULFURIZATION AND STEAM REFORMING OF NORMALLY LIQUID HYDROCARBONS WHEREIN THE HYDROGEN REQUIRED FOR DESULFURIZATION IS OBTAINED FROM THE STEAM REFORMING REACTION PRODUCT AND INTRODUCED INTO THE FEED TO THE DESULFURIZER BY DIFFUSION THROUGH A NON-POROUS HYDROGEN-PERMEABLE MEMBRANE.
Inventors
- 👤 Johann Gunther E Cohn
- 👤 William C Pfefferle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:32
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/007; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/50; C01B2203/00; C01B2203/04; C01B2203/0465; C01B2203/048
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 |