Granted Patent
Utility
US 4,922,665 · App. 07/277,877
Wet sander
Inventor:
Andrew Wanatowicz
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Nov 30, 1988
Inventor
Andrew Wanatowicz
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.