Granted Patent
Utility
US 5,308,299 · App. 08/096,884
Hand exerciser
Inventor:
Edith Winston
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Jul 26, 1993
Inventor
Edith Winston
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.