Patent US3669903A successfully refreshed from Google Patents.
US3669903A
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Catalytic cracking process
Assignee: Mobil Oil AS
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Filing: 1966-06-16
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Granted: 1972-06-13
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Expires: 1986-06-16
Abstract
Abstract Hydrocarbon conversion catalysts comprising crystalline aluminosilicates containing rare earths and other metals from Groups IB through VIII of the Periodic Table, and having a low alkali metal content. They are useful in hydrocarbon conversion processes such as cracking, hydrocracking hydrodesulfurization, alkylation, dehydrogination, and hydrogenation.
Inventors
- 👤 Jean M Bourguet
- 👤 Francis D Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:23
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/02; C10G49/08; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; C10G11/00; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
23 words
A crystalline aluminosilicate comprising cerium and beryllium cations, said crystalline aluminosilicate having a sodium content of less than about 1 percent by weight.
References Cited (Backward Citations)
US2971903A
Cited
US3210267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |