Granted Patent
Utility
US 6,725,694 · App. 10/228,229
Column lock device
Inventor:
Robert A. Vito
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Aug 26, 2002
Inventor
Robert A. Vito
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.