Technique for labeling an object for its identification and/or verification
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United States of America Patent
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-
Feb 4, 1997
Issued Date -
N/A
app pub date -
Nov 1, 1994
filing date -
Apr 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is addressed to providing a simple, yet reliable method for labeling an object for its verification. The present invention includes applying a mark to said object with a visible ink which contains a first component which is visible to the naked eye and a second component which is invisible to the naked eye and comprises one or more of ultraviolet radiation (UV) dye which is visible only in the presence of selected ultraviolet radiation, an infrared (IR) dye which is visible only in the presence of selected infrared radiation, an ink which displays a selected measurable electrical resistivity, or a biologic marker. The applied mark has said first component which is visible to the naked eye and said second component which is invisible to the naked eye.
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