Document having concealed electrically conductive authenticating layer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 1, 1986
Grant Date -
N/A
app pub date -
Dec 27, 1983
filing date -
Dec 27, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A standardized document such as a credit card or drivers license contains an electrically conductive authenticating layer which is not visually discernible and has an electrical resistivity of less than 50 megohms per square. The presence of the authenticating layer may be verified by a proximity switch that can be built into mechanisms normally used in processing the document.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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