US3780126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative dehydrogenation in the presence of crystalline,provoskite type manganese compounds
Assignee: Texas Petrochemicals Corp
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Filing: 1971-03-26
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Granted: 1973-12-18
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Expires: 1991-03-26
Abstract
Abstract PROCESS FOR THE OXIDATIVE DEHYDROGENATION OF DEHYDROGENATABLE ORGANIC COMPOUNDS BY HEATING THE COMPOUNDS WITH OXYGEN (AND OPTIONALLY HALOGEN) IN THE PRESENCE OF A SOLID CRYSTALLINE CATALYST CONTAINING MANGANESE AND AT LEAST TWO OTHER METALS, ONE OF WHICH IS A LIGHT METAL HAVING AN OXIDATION STATE OF 1+ OR 2+. MANGANESE COMPOUNDS OF THE PEROVSKITE STRUCTURE ARE PREFERRED CATALYSTS.
Inventors
- 👤 H Manning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; B; B01; B01J; B01J23/00; B01J23/002; B01J23/16; B01J23/32; B01J23/34; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892; B01J2523/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |