Security element for electronic surveillance of articles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 17, 2006
Issued Date -
N/A
app pub date -
Apr 29, 2002
filing date -
Oct 27, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radio frequency security element is provided for electronic surveillance of articles of merchandise. The security element comprises a lower strip conductor (1) and an upper strip conductor (5), which are wound in opposite directions. The upper and lower strip conductors and superimposed and connected in a common contact zone. The coil turns of the two conductor strips each have an included angle of rotation less than 2π. The security element has an improved detection rate and is particularly stable against changes in the resonance frequency.
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