Granted Patent
Utility
US 4,961,573 · App. 07/223,623
Boxing exercise harness
Inventor:
Michael A. Wehrell
Patented Case
View Patent ↗
Granted: Oct 9, 1990
Filed: Jul 25, 1988
Inventor
Michael A. Wehrell
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.