Granted Patent
Utility
US 4,963,224 · App. 07/457,193
Motorized carpet and tile stripping tool
Inventor:
Martin L. Anderson
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Dec 26, 1989
Inventor
Martin L. Anderson
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.