Granted Patent
Utility
US 5,366,037 · App. 07/980,469
Powered wheelchair having drive motors integrated into driven wheels
Inventor:
Joseph B. Richey, II
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Nov 23, 1992
Inventor
Joseph B. Richey, II
Assignee (at issue)
INVACARE CORPORATION
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.