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US3677909A
Expired / Lapsed
US
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Palladium-nickel alloy plating bath
Assignee: Individual
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Filing: 1971-04-22
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Granted: 1972-07-18
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Expires: 1991-04-22
Abstract
Abstract A PALLADIUM-NICKEL ALLOY PLATING BATH IS FORMED OF A SOLUTION OF A PALLADIUM SALT AND A NICKEL SALT IN AMMONIA, AND A BRIGHTENER IN THE NATURE OF A SOLFONAMIDE IS ADDED TO THE BATH IN WHICH A METAL IS PLATED FOR APPROXIMATELY 30 MINUTES AT A PH BETWEEN 7 AND 10, TEMPERATURE BETWEEN 15*C. AND 40*C., AND A CATHODE CURRENT DENSITY OF 0.5 TO 1.5 A./DM.2 WITHOUT AGITATION.
Inventors
- 👤 Katsumi Yamamura
- 👤 Tsugumitsu Miyasaka
- 👤 Shinichi Hayashi
- 👤 Masao Yamamoto
- 👤 Yukio Matsubara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:21
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/567
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |