Granted Patent
Utility
US 6,243,917 · App. 09/342,913
Floating brush for a vacuum cleaner head
Inventor:
Wayne Ernest Conrad
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Jun 30, 1999
Inventor
Wayne Ernest Conrad
Assignee (at issue)
Fantom Technologies 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.