Tamper-indicating sheet
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United States of America Patent
Stats
-
Dec 18, 1984
Issued Date -
N/A
app pub date -
Oct 3, 1983
filing date -
Jan 29, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A novel lottery ticket comprising a blush-type coating which coating is characterized by susceptibility to a change in appearance when exposed to either (a) any of a wide spectrum of organic solvents or (b) an elevated temperature. Such susceptibility reveals that solvent or thermal techniques have been used in tampering with the ticket or a pouch package in which the ticket is held. Such tampering is often the result of an illicit attempt to obtain information about the indicia printed on the ticket.
First Claim
Family
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Cited Art Landscape
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