Granted Patent
Utility
US 4,151,994 · App. 05/780,449
Game footbag
Inventor:
Robert J. Stalberger, Jr.
Patented Case
View Patent ↗
Granted: May 1, 1979
Filed: Mar 23, 1977
Inventor
Robert J. Stalberger, 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.