Granted Patent
Utility
US 6,810,554 · App. 09/993,137
Cleaning tool with removable cleaning sheets
Inventor:
William D. McKay
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Nov 16, 2001
Inventor
William D. McKay
Assignee (at issue)
Rapid Brands Corporation
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.