Granted Patent
Utility
US 6,296,582 · App. 09/430,373
Baseball striking practice device
Inventor:
Timothy Minniear
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Oct 29, 1999
Inventor
Timothy Minniear
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.