Hard metal watch case with a resistant coating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 3, 1987
Grant Date -
N/A
app pub date -
May 7, 1985
filing date -
Jun 7, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The watch case has its body fashioned of hard metal of hardness preferably greater than 1400 Vickers. The body is overlaid by a two layer coating. The chemical composition of the two layers is identical and comprises the combination of a metal and an element whose atomic number is less than 9. The first layer is deposited by CVD and the second by PVD. If the metal is titanium and the element nitrogen there is obtained on the body of the scratch proof case a perfectly adhering hard coating of gold color.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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