Granted Patent
Utility
US 5,456,191 · App. 08/086,279
Adjustable height counter weighted manual lift table
Inventor:
Donald M. Hall
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Jun 25, 1993
Inventor
Donald M. Hall
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.