Granted Patent
Utility
US 6,722,181 · App. 10/195,524
Bending method and bending apparatus
Inventor:
Seiju Nagakura
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jul 16, 2002
Inventor
Seiju Nagakura
Assignee (at issue)
Toyokoki 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.