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US2905613A
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Methods and apparatus for the electrolytic-refining of titanium metal or zirconium metal
Assignee: Osaka Titanium Co Ltd
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Filing: 1956-09-19
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Granted: 1959-09-22
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Expires: 1976-09-19
Abstract
No abstract record available.
Inventors
- 👤 Tomonari Tadao
- 👤 Ishimoto Noboru
- 👤 Togo Tetsuro
- 👤 Izumi Tamotsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:49
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE28339C
Cited
US2732339A
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US2734856A
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US1012470A
Cited
FR667252A
Cited
US2707169A
Cited
GB713446A
Cited
US2707170A
Cited
US2785066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |