US3784485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative dehydrogenation catalyst
Assignee: Atlantic Richfield Co
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Filing: 1972-04-17
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Granted: 1974-01-08
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Expires: 1992-04-17
Abstract
Abstract METHOD FOR THE OXIDATIVE DEHYDROGENATION OF PARAFFINS TO PRODUCE OLEFINS BY CONTACTING THE PARAFFINS WITH MOLECULAR OXYGEN IN THE PRESENCE OF MOLTEN ALKALI METAL HYDROXIDES, ALUMINUM, AND A SOLUBLE TRANSITION METAL OXYANION INCLUDED IN THE MOLTEN ALKALI METAL HYDROXIDE.
Inventors
- 👤 E Tomezsko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/20; B01J35/27; B01J23/00; B01J23/16; B01J23/20; B01J23/22; C; C07; C07C; C07C5/00; C07C5/42; C07C5/48
Claims Analysis
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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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |