Granted Patent
Utility
US 6,405,403 · App. 09/602,189
Cleaning tool with removable cleaning sheets
Inventor:
William D. McKay
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Jun 12, 2000
Inventor
William D. McKay
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.