Prepaid or stored-value card with means for preventing useful fraudulent alteration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 4, 2000
Grant Date -
N/A
app pub date -
Feb 2, 1998
filing date -
Feb 7, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A prepaid card with elements for preventing useful fraudulent alteration, comprising, on a supporting element, at least one electrically rewritable permanent register, at least one temporary register and at least one control element for comparison between a usable value that is present in the at least one permanent register and a new value which is temporarily provided in the at least one temporary register. The control element is suitable to allow to write the new value in the permanent register in replacement of the usable value only if the new value is smaller than the usable value.
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Family
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Cited Art Landscape
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