Granted Patent
Utility
US 6,463,257 · App. 09/384,657
Interactive educational toy
Inventor:
Michael C. Wood
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Aug 27, 1999
Inventor
Michael C. Wood
Assignee (at issue)
Knowledge Kids Enterprises, 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.