Granted Patent
Utility
US 5,197,932 · App. 07/722,605
Ganged exercise shoes
Inventor:
Christopher John Smith
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Jun 27, 1991
Inventor
Christopher John Smith
Assignee (at issue)
Prostretch, Inc.
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.