Patent US3415039A successfully refreshed from Google Patents.
US3415039A
Expired / Lapsed
US
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Method and apparatus for the recovery of fluorine
Assignee: Honeywell UOP LLC
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Filing: 1965-11-03
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Granted: 1968-12-10
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Expires: 1985-11-03
Abstract
No abstract record available.
Inventors
- 👤 William E Rushton
- 👤 Kleinman George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:47
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/08; C01B33/10; C01B33/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA617506A
Cited
US3273713A
Cited
US2447834A
Cited
US3091513A
Cited
US3275062A
Cited
US3286442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |