Personal identification system
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United States of America Patent
Stats
-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Aug 20, 1992
filing date -
Aug 20, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A group of seven (7) PINs are assigned to each card holder. The group of PINs are to be used in a specific sequence changing each calendar day. If a PIN is used out of sequence, then access to the charge or credit card is denied by the card company. A grid of numbers and letters are used to vary the PIN each day. The grid includes seven (7) rows and seven (7) columns with the numbers 1 through 7 randomly selected and placed in the seven (7) rows and columns. The rows and columns, when utilized correctly, allow the card holder to access seven three-digit codes. The codes or personal identification numbers must be used in the correct sequence which is determined by the number of uses per calendar day.
First Claim
Family
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Cited Art Landscape
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