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United States of America Patent
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Feb 21, 2012
Grant Date -
N/A
app pub date -
May 4, 2001
filing date -
May 4, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and techniques for transferring electronic data between users of a communication system by delivering an e-mail message from a sender to at least one recipient and indicating the online state of at least one of the sender and any other recipient of the e-mail message upon opening of the e-mail message by the recipient.
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