US3630856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of ruthenium
Assignee: Sel Rex Corp
•
Filing: 1970-03-20
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Granted: 1971-12-28
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Expires: 1990-03-20
Abstract
Abstract THICK ELECTRODEPOSITS OF RUTHENIUM CAN BE OBTAINED BY ADDING AN ELEMENT SELECTED FROM GALLIUM, INDIUM, AND THALLIUM IN A STABLE AND SOLUBLE FORM. THE DEPOSITS OBTAINED ARE PRIMARILY CHARACTERIZED BY THEIR LOW STRESS AND ABSENCE OF SURFACE CRACKS AT THICKNESS UP TO ABOUT 10 MILLIMICRONS.
Inventors
- 👤 Andre Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:33
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/50; C25D3/54
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |