Granted Patent
Utility
US 6,460,385 · App. 10/007,090
Column lock device
Inventor:
Robert A. Vito
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Dec 7, 2001
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.