US3585250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur promoted dehydrogenation of organic compounds
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1968-12-02
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Granted: 1971-06-15
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Expires: 1988-12-02
Abstract
Abstract ORGANIC COMPOUNDS HAVING A DEHYDROGENATABLE CARBONTO-CARBON BOND ARE DEHYDROGENATED IN THE VAPOR PHASE WITH SULFUR AND/OR SULFUR OXIDE DEHYDROGENATION AGENTS, THE TOTAL DEHYDROGENATION AGENT REQUIREMENT BEING ADDED INCREMENTALLY AT MORE THAN ONE POINT TO THE DEHYDROGENATION ZONE, THE TOTAL REQUIREMENT OF DEHYDROGENATION AGENT BEING EQUAL TO THE SUM OF THE AMOUNTS OF THE SEVERAL INCREMENTAL ADDITIONS, THE REACTION PREFERABLY BEING EFFECTED IN THE PRESENCE OF A SUITABLE LOW SURFACE AREA CATALYST AND AN INERT DILUENT.
Inventors
- 👤 Israel S Pasternak
- 👤 Abraham D Cohen
- 👤 Noel J Gaspar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:11
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/46; C07C5/54
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |