US3788974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking process utilizing mixed nonnoble metal catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1972-06-13
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Granted: 1974-01-29
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Expires: 1992-06-13
Abstract
Abstract A HYDROCRACKING PROCESS WHICH USES A MIXED NONNOBLE METAL CATALYST COMPOSITE ON A CRYSTALLINE ALUMINOSILICATE ZEOLITE CRACKING BAR. THE SINGULAR CATALYST EMPLOYED IN THE PROCESS COMPRISES NICKEL-TUNGSTEN ON THE HYDROGEN FORM OF A CRYSTALLINE ALUMINOSILICATE ZEOLITE HAVING A UNIFORM PORE DIAMETER, A CRYSTAL STRUCTURE THAT OF FAUJASITE AND A SILICA TO ALUMINA MOLE RATIO GREATER THAN ABOUT 3. D R A W I N G
Inventors
- 👤 R Mason
- 👤 G Hamner
- 👤 F Buchmann
- 👤 C Eidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:32
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/16; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G47/20; C10G65/00; C10G65/02; C10G65/10; Y; Y10; Y10S; Y10S208/00; Y10S208/02
Claims Analysis
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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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |