US3578608A
Expired / Lapsed
US
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Regenerating a platinum oxide deactivated catalyst resulting from use in eliminating oxides of nitrogen from gases
Assignee: EIDP Inc
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Filing: 1968-09-24
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Granted: 1971-05-11
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Expires: 1988-09-24
Abstract
Abstract REGENERATING A DEACTIVATED PLATINUM CATALYST BY HEATING A PLATINUM OXIDE DEACTIVATED CATALYST ON A CARRIER AND PASSING GAS INERT IN THE SYSTEM UNDER CONDITIONS OF REGENERATION OVER THE DEACTIVATED CATALYST FOR A TIME AND AT A TEMPERATURE SUFFICIENT TO CAUSE DISSOCIATION OF A PLATINUM OXIDE AND REFORM PLATINUM IN METALLIC FROM ON THE CARRIER.
Inventors
- 👤 Kamran Aykan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:23
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D53/8621; B01D53/8625; B01D53/8628
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |