Granted Patent
Utility
US 6,594,644 · App. 09/649,211
Electronic gift certificate system
Inventor:
Karen L. Van Dusen
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Aug 28, 2000
Inventor
Karen L. Van Dusen
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.