Patent US3840475A successfully refreshed from Google Patents.
US3840475A
Expired / Lapsed
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Bimetallic catalyst preparation
Assignee: Mobil Oil AS
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Filing: 1971-02-19
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Granted: 1974-10-08
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Expires: 1991-02-19
Abstract
Abstract 1. A METHOD OF PREPARING A SUPPORTED BIMETALLIC CATALYST CONTAINING A PLATINUM GROUP METAL CATALYTICALLY ACTIVE IN HYDROPROCESSING REACTIONS, COMPRISING INTIMATELY ASSOCIATING A POROUS ALUMINA WITH A COMPOUND CAPABLE ON IONIZATION OF FURNISHING A COMPLEX ION CONTAINING BOTH SAID PLATINUM GROUP METAL AND TIN.
Inventors
- 👤 B Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:59
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; B01J23/626; B01J23/64; B01J23/656; B01J23/6567; B01J23/70; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; C07C5/415; C07C5/417; C10G35/085; C10G35/09; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A METHOD OF PREPARING A SUPPORTED BIMETALLIC CATALYST CONTAINING A PLATINUM GROUP METAL CATALYTICALLY ACTIVE IN HYDROPROCESSING REACTIONS, COMPRISING INTIMATELY ASSOCIATING A POROUS ALUMINA WITH A COMPOUND CAPABLE ON IONIZATION OF FURNISHING A COMPLEX ION CONTAINING BOTH SAID PLATINUM GROUP METAL AND TIN.
Claim 2
Independent Claim
43 words
A METHOD OF PREPARING A SUPPORTED BIMETALLIC CATALYST CONTAINING A PLATINUM GROUP METAL CATALYTICALLY ACTIVE IN HYDROPROCESSING REACTIONS, COMPRISING INTIMATELY ASSOCIATING A POROUS ALUMINA WITH A COMPOUND CAPABLE ON IONIZATION OF FURNISHING A COMPLEX ION CONTAINING BOTH SAID PLATINUM GROUP METAL AND TIN.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |