Granted Patent
Utility
US 5,452,526 · App. 08/173,151
Footwear having an outsole stiffener
Inventor:
David R. Collins
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Dec 22, 1993
Inventor
David R. Collins
Assignee (at issue)
Trisport AG
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.