Granted Patent
Utility
US 5,999,903 · App. 08/883,723
Reading system having recursive dictionary and talking help menu
Inventors:
Mark S. Dionne, Michael Gorman
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Jun 27, 1997
Inventors
Mark S. Dionne
Michael Gorman
Assignee (at issue)
Kurzweil Educational Systems, 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.