Granted Patent
Utility
US 6,564,213 · App. 09/551,787
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Inventors:
Ruben E. Ortega, John W. Avery, Robert Frederick
Patented Case
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Granted: May 13, 2003
Filed: Apr 18, 2000
Inventors
Ruben E. Ortega
John W. Avery
Robert Frederick
Assignee (at issue)
Amazon.com, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.