Usage promotion method for payment card transaction system
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United States of America Patent
Stats
-
Mar 6, 1990
Grant Date -
N/A
app pub date -
Sep 19, 1988
filing date -
Sep 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A usage promotion method for use with a payment card data interchange system in which a computer examines card transaction data files to select transactions conforming to specified criteria. The computer eliminates arbitrarily all but a fraction of the selected transactions, selects winning transactions by using the bytes of the computer's system clock, and produces a verifiable list of winning transactions which, after manual verification, are used to create credits to the accounts of the card holders of the winning transactions.
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