Patent US3578583A successfully refreshed from Google Patents.
US3578583A
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Reforming process with promoted low platinum content catalyst
Assignee: Chevron USA Inc
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Filing: 1969-08-01
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Granted: 1971-05-11
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Expires: 1989-08-01
Abstract
Abstract REFORMING A NAPHTHA IN THE PRESENSE OF HYDROGEN WITH A CATALYST COMPOSITION OF A POROUS SOLID CARRIER AND 0.01 TO 0.3 WEIGHT PERCENT PLATINUM, 0.01 TO 0.3 WEIGHT PERCENT RHENIUM, AND 0.001 TO 0.1 WEIGHT PERCENT IRIDIUM, AND THE NOVEL SUPPORTED PLATINUM-RHENIUM-IRIDIUM CATALYST.
Inventors
- 👤 Waldeen C Buss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:58
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/656; B01J23/6567
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 |