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US2454466A
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Regeneration of fluid catalysts with cooling of flue gases by water injection
Assignee: Standard Oil Development Co
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Filing: 1944-02-03
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Granted: 1948-11-23
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Expires: 1964-02-03
Abstract
No abstract record available.
Inventors
- 👤 Roi Earl J Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1845; B01J8/1863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1446857A
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US2127009A
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GB544063A
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US2311978A
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US2320562A
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US2309034A
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US2379734A
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US2393839A
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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) | 1951-11-23 | 1952-05-24 | 1952-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-23 | 1956-05-24 | 1956-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-23 | 1960-05-24 | 1960-11-23 | $7700.00 | Window Closed / Lapsed |