US3829366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of titanium cathode surfaces
Assignee: Imperial Metal Industries Kynoch Ltd
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Filing: 1972-10-27
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Granted: 1974-08-13
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Expires: 1992-10-27
Abstract
Abstract A METHOD OF EXTRACTING METAL FROM AN ELECTRLYTE IS DESCRIBED USING A PARTICULAR CATHODE WHICH HAS BEEN TREATED BY IMMERSION AND/OR ANODISATION IN A SUBSTANTIALLY FLUORIDE FREE ALKALINE AQUEOUS SOLUTION OF AN ORGANIC COMPLEXING AGENT FOR TILANIUM. THE CATHOD ITSELF IS ALSO DESCRIBED. D R A W I N G
Inventors
- 👤 A Ives
- 👤 J Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:25
CPC Classifications
C; C25; C25C; C25C1/00; C23; C23C; C23C22/00; C23C22/05; C23C22/60; C23C22/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |