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Patent US2425969A successfully refreshed from Google Patents.
US2425969A
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Method and apparatus for conducting gaseous reactions in the presence of solid particles
Assignee: ExxonMobil Oil Corp
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Filing: 1944-04-20
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Granted: 1947-08-19
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Expires: 1964-04-20
Abstract
No abstract record available.
Inventors
- 👤 Utterback Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:10
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/125; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2350730A
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US2263363A
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US2351214A
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US2253486A
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US2248196A
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US2311984A
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US2341193A
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US2378342A
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US2363874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |