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CONVERSATIONAL MESSAGE SERVICE OPERATING METHOD FOR PROVIDING ACKNOWLEDGEMENT

  • US 20130212202A1
  • Filed: 09/21/2012
  • Published: 08/15/2013
  • Est. Priority Date: 09/22/2011
  • Status: Active Grant
First Claim
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1. A method of operating a conversational messaging service, the method comprising:

  • assigning an identification number to messages transmitted by users participating in a group chat, sequentially;

    selecting an identification number of any one of messages associated with each of the users as a watermark of each of the users; and

    determining a number of users failing to read each of the messages, based on the watermark selected for the each of the users.

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