US2659701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solubilized platinum sulfide reforming catalyst
Assignee: Standard Oil Co
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Filing: 1951-06-29
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Granted: 1953-11-17
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Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 Heard Llewellyn
- 👤 Herder Marvin J Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:31
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J37/00; B01J37/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD FOR PREPARING A HYDROCARBON-CON VERSION CATALYST WHICH COMPRISES COMMINGLING A PLATINUM COMPOUND WITH A SOLUTION OF A SULFIDE OF A NITROGEN BASE, WHEREBY A STABLE SOLUTION OF PLATINUM SULFIDE IS OBTAINED, COMMINGLING SAID STABLE SOLUTION OF PLATINUM SULFIDE WITH ALUMINA, AND DRYING AND CALCINING THE RESULTING CATALYTIC MIXTURE.
Claim 2
Independent Claim
50 words
A METHOD FOR PREPARING A HYDROCARBON-CON VERSION CATALYST WHICH COMPRISES COMMINGLING A PLATINUM COMPOUND WITH A SOLUTION OF A SULFIDE OF A NITROGEN BASE, WHEREBY A STABLE SOLUTION OF PLATINUM SULFIDE IS OBTAINED, COMMINGLING SAID STABLE SOLUTION OF PLATINUM SULFIDE WITH ALUMINA, AND DRYING AND CALCINING THE RESULTING CATALYTIC MIXTURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |