Granted Patent
Utility
US 5,009,444 · App. 07/410,370
Slideable jack stand
Inventor:
Thomas M. Williams, Jr.
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Sep 21, 1989
Inventor
Thomas M. Williams, 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.