Granted Patent
Utility
US 5,464,385 · App. 08/184,494
Walker with open heel
Inventor:
Tracy E. Grim
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Jan 19, 1994
Inventor
Tracy E. Grim
Assignee (at issue)
Royce Medical Company
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.