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US3364150A
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Catalyst and method for increasing the hydrocracking activity thereof
Assignee: Chevron USA Inc
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Filing: 1967-01-09
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Granted: 1968-01-16
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Expires: 1987-01-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:18
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; B; B01; B01J; B01J23/00; B01J23/70; C10G47/12; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2581228A
Cited
US2780584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |