Granted Patent
Utility
US 6,616,172 · App. 09/290,742
Folding wheelchair with a positioning assembly
Inventor:
George R. Cockram
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Apr 13, 1999
Inventor
George R. Cockram
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.