Passivating and silver removal method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 14, 1982
Grant Date -
N/A
app pub date -
Jul 16, 1981
filing date -
Jul 16, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the production of records, a mother is formed from a metal master having a nickel core and a silver coating. To produce the mother, the silver coating is removed from the nickel core and the nickel is passivated by treating the metal master with an aqueous solution containing ammonium persulphate. The same aqueous solution can be used for passivating the mother before the mother is electroplated to form a stamper.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully