Granted Patent
Utility
US 6,709,002 · App. 10/192,392
Ball hitch
Inventor:
Curt Tambornino
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Jul 10, 2002
Inventor
Curt Tambornino
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.