Security paper, manufacturing method and security document obtained with said paper
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 20, 2013
Grant Date -
Nov 24, 2011
app pub date -
Mar 6, 2009
filing date -
Mar 7, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention consists in a security paper, as well as the security document obtained with it and the manufacturing process thereof, that combines the security elements called windowed thread with the high contrast single-tone watermark technique. In order to carry out this invention, we make use of the recesses created to cover the thread in the areas where it is visible, which exhibit a greater accumulation of fibers and are therefore opaque areas in the final paper, to insert therein the electrotype or high contrast single-tone watermarks.
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