Patent US3679575A successfully refreshed from Google Patents.
US3679575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming with a platinum mordenite-alumina catalyst
Assignee: Standard Oil Co
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Filing: 1969-11-03
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Granted: 1972-07-25
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Expires: 1989-11-03
Abstract
Abstract THE CATALYST COMPRISES A GROUP VIII NOBLE METAL, MORDENITE HAVING A SILLICA-TO-AMUMINA RATIO OF AT LEAST 19:1, AND AN ADSORBENT REFRACTORY INORGANIC OXIDE. THE PREFERRED GROUP VIII NOBLE METAL IS PLATINUM; THE PREFERRED REFRACTORY INORGANIC OXIDE IS A CATALYTICALLY ACTIVE ALUMINA. THE MORDENITE HAS A SILLICA-TO-ALUMINA RATIO OF LESS THAN 45:1. THE PROCESSES IN WHICH THE CATALYST IS EMPLOYED ARE PROCESSES FOR REFORMING OF PETROLEUM HYDROCARBON FEEDSTOCKS.
Inventors
- 👤 Ralph J Bertolacini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:35
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10G59/00; C10G59/02
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |