Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2005-04-05
2009-12-08
Elisca, Pierre E (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C726S009000, C726S017000, C726S018000, C726S020000, C726S021000
Reexamination Certificate
active
07630941
ABSTRACT:
Mechanisms for controlling a commercial transaction are presented. An article of manufacture has a time cell that is read by an electronic apparatus. In response to a determination of a state of the time cell by the electronic apparatus, usage of the article of manufacture in a commercial transaction is enabled or denied based on the determined state of the time cell. The expiration period of a time cell controls the time period during which the commercial transaction is enabled or is denied to be performed; an unexpired time cell may both enable or deny performance of a commercial transaction, and an expired time cell may also both enable or deny performance of a commercial transaction. The time cell may be used to restrict the usage period of a coupon, a promotional offer, a pre-paid service, or some other commercial transaction that involves an article of manufacture.
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Elisca Pierre E
International Business Machines - Corporation
LaBaw Jeffrey S.
Le Nancy T
Walder, Jr. Stephen J.
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