Granted Patent
Utility
US 6,227,933 · App. 09/594,094
Robot ball
Inventors:
François Michaud, Serge Caron
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Jun 15, 2000
Inventors
François Michaud
Serge Caron
Assignee (at issue)
UNIVERSITE DE SHERBROOKE
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.