Granted Patent
Utility
US 6,572,133 · App. 09/965,285
Folding mechanism for a wheelchair
Inventor:
Rex W. Stevens
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Sep 27, 2001
Inventor
Rex W. Stevens
Assignee (at issue)
Sunrise Medical HHG, 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.