Granted Patent
Utility
US 6,209,658 · App. 09/504,846
Motorized screw driving tool
Inventor:
Moo Young Yoon
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Feb 16, 2000
Inventor
Moo Young Yoon
Assignee (at issue)
Dongeun Electronics Co., Ltd.
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.