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Sales of collections excluding those already purchased

  • US 20050120053A1
  • Filed: 11/17/2004
  • Published: 06/02/2005
  • Est. Priority Date: 04/18/2003
  • Status: Active Grant
First Claim
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1. A method including steps of maintaining a first database and a second database, said first database logically related to a user and said second database logically related to a vendor, each database including a list of one or more items;

  • defining a set of characteristics for each said item, said characteristics indicative of intrinsic and extrinsic features of said items;

    grouping logically into collections those items in said first database and said second database based on said defining;

    identifying in said first database, for each collection in said second database where at least one item of said second database collection is present in said first database collection, items in said second database collection that would complete said first database collection with the addition of said items to said first database collection; and

    purchasing items for said first database based of said identifying.

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