Granted Patent
Utility
US 6,458,037 · App. 09/631,079
Self-training batting practice machine
Inventor:
Nicholas E. Dixon, Jr.
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Aug 2, 2000
Inventor
Nicholas E. Dixon, Jr.
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.