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Patent US2467407A successfully refreshed from Google Patents.
US2467407A
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Catalytic conversion of fischer synthesis product
Assignee: Individual
•
Filing: 1944-11-08
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Granted: 1949-04-19
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Expires: 1964-11-08
Abstract
No abstract record available.
Inventors
- 👤 Robert F Ruthruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:11
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/095; B; B01; B01J; B01J21/00; B01J21/14; C10G29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2229353A
Cited
US2331338A
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US2319836A
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US2278590A
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US2377512A
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US2288875A
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US2323728A
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US2320799A
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US2360787A
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US2379027A
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US2377935A
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US2340698A
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US2377657A
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US2361978A
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US2367694A
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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) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |