Security element in the form of a thread or be embedded in security and methods of producing it
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 5, 2002
Grant Date -
N/A
app pub date -
Jan 20, 2000
filing date -
Mar 4, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security element in the form of a thread or strip to be embedded in security documents such as bank notes, checks, bonds, identity cards, credit cards or the like, having characters, patterns, etc., that are readable by transmitted light to the naked eye and/or by machine. The security element consists of a transparent plastic film having an opaque coating extending over the element with blank areas in the form of the characters and patterns to be introduced. The security element also contains, in areas congruent with the blank areas, coloring and/or luminescent substances which cause the characters and/or patterns to differ from the security document and from the opaque coating by color contrast under suitable light conditions.
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