Granted Patent
Utility
US 6,591,442 · App. 09/776,646
Flexible mop base
Inventor:
Bruce Kaminstein
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Feb 9, 2001
Inventor
Bruce Kaminstein
Assignee (at issue)
Kaminstein Imports, Inc
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.