Granted Patent
Utility
US 5,819,356 · App. 08/798,854
Twist mop
Inventor:
Robert A. Cann
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Feb 12, 1997
Inventor
Robert A. Cann
Assignee (at issue)
Easy Day Manufacturing Company
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.