Granted Patent
Utility
US 6,224,525 · App. 09/426,556
Exerciser for muscle groups of the pelvis
Inventor:
Daniel S. Stein
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Oct 22, 1999
Inventor
Daniel S. Stein
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.