Patent US2481208A successfully refreshed from Google Patents.
US2481208A
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Method of dehydrofluorination with metallic mixtures as catalyst
Assignee: Phillips Petroleum Co
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Filing: 1945-12-26
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Granted: 1949-09-06
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Expires: 1965-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jack F Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:16
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/095; C07; C07C; C07C7/00; C07C7/148; C07C9/00; C07C9/14; C07C9/16; C10G29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB315818A
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US1869781A
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US2066697A
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US2347945A
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US2351167A
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US2333648A
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US2333649A
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US2377546A
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US2378636A
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US2396844A
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US2413868A
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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) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |