Granted Patent
Utility
US 6,718,872 · App. 10/334,988
Printer with a duplex printing capability
Inventor:
Hiroshi Kanno
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jan 2, 2003
Inventor
Hiroshi Kanno
Assignee (at issue)
Tohoku Ricoh 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.