Granted Patent
Utility
US 5,768,745 · App. 08/740,897
Suction tube mounted with an auxiliary brush of a vacuum cleaner
Inventor:
Nam-Ho Lee
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Nov 4, 1996
Inventor
Nam-Ho Lee
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.