Granted Patent
Utility
US 5,518,234 · App. 08/237,217
Game ball
Inventor:
Marvin E. Palmquist
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: May 3, 1994
Inventor
Marvin E. Palmquist
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.