US3766054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demetalation of hydrocarbon charge stocks
Assignee: Mobil Oil AS
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Filing: 1972-05-12
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Granted: 1973-10-16
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Expires: 1992-05-12
Abstract
Abstract THIS SPECIFICATION DISCLOSES THE DEMETALATION OF A BYDROCARBON CHARGE STOCK. THE DEMETALATION PROCEDURE INVOLVES CONTACTING THE HYDROCARBON CHARGE STOCK WITH BYDROGEN IN THE PRESENCE OF, AS A CATALYST, A MATERIAL DERIVED FROM THE NATURALLY OCCURING UNDERWATER DEPOSIT KNOWN AS A MANGANESE NODULE. THE MANGANESE NODULE MAY BE EMPLOYED WITHOUT PRETREATMENT OR MAY BE PRETREATED BY SULFIDING OR BY LEACHING TO REMOVE AND RECOVER ONE OR MORE VALUABLE METALLIC CONSTITUENTS. THE MANGANESE NODULE CATALYST, AFTER IT HAS BECOME DEACTIVATED BY USE MAY BE PROCESSED TO REMOVE AND RECOVER ONE OR MORE VALUABLE CONSTITUTENTS. D R A W I N G
Inventors
- 👤 P Weisz
- 👤 A Silvestri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:16
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/06; B01J23/00; B01J23/16; B01J23/32; B01J23/34; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107; Y; Y10; Y10S; Y10S423/00; Y10S423/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |