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US3463631A
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Method and arrangement for determining the oxidation reactions during refining of metals
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1964-11-30
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Granted: 1969-08-26
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Expires: 1984-11-30
Abstract
No abstract record available.
Inventors
- 👤 Pierre Vayssiere
- 👤 Jacques Dumont-Fillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:19
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S261/00; Y10S261/09; Y10T; Y10T436/00; Y10T436/12; Y10T436/20; Y10T436/204998; Y10T436/207497; Y10T436/208339; Y10T436/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3181343A
Cited
US3329495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |