Granted Patent
Utility
US 5,591,221 · App. 08/533,307
Therapeutic footwear method
Inventor:
Byron C. Owens
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Sep 25, 1995
Inventor
Byron C. Owens
Assignee (at issue)
Vettore, LLC
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.