Granted Patent
Utility
US 5,893,195 · App. 08/927,632
Safety device for a brush of a vacuum cleaner
Inventor:
Young-June Jung
Patented Case
View Patent ↗
Granted: Apr 13, 1999
Filed: Sep 11, 1997
Inventor
Young-June Jung
Assignee (at issue)
Daewoo Electronics 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.