US3751349A
Expired / Lapsed
US
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Method for electrolytically forming a coating of titanium-alkaline earth metal compound oxide
Assignee: Stanley Electric Co Ltd
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Filing: 1971-03-24
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Granted: 1973-08-07
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Expires: 1991-03-24
Abstract
Abstract A METHOD FOR FORMING A COATING OF TITANIUM-ALKALINE EARTH METAL COMPOUND OXIDE ON THE SURFACE OF TITANIUM USED AS ONE OF THE ELECTRODES IN AN ELECTROLYSIS, IN WHICH SAID ELECTROLYSIS IS CARRIED OUT IN A BATH CONTAINING HYDROXIDES OR SALTS OF ALKALINE EARTH METALS AND EMPLOYING ALTERNATING CURRENT POWER SOURCE.
Inventors
- 👤 H Nozaki
- 👤 M Yamazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:37
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/075; C25D; C25D11/00; C25D11/02; C25D11/26
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |