Granted Patent
Utility
US 4,800,657 · App. 06/899,967
Variably adjustable shoe insert
Inventor:
Dennis N. Brown
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Aug 25, 1986
Inventor
Dennis N. Brown
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.