Granted Patent
Utility
US 6,793,129 · App. 10/218,688
Study aid apparatus and method of using study aid apparatus
Inventors:
Michael C. Wood, Kelly Ann Chapman, Christa McClintock, Ann Earp, Andrew Hartzell, Matthew Fishbach
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Aug 12, 2002
Inventors
Michael C. Wood
Kelly Ann Chapman
Christa McClintock
Ann Earp
Andrew Hartzell
Matthew Fishbach
Assignee (at issue)
LeapFrog 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.