Granted Patent
Utility
US 6,427,586 · App. 09/725,562
Printer with a plurality of print drums
Inventor:
Mituru Takahashi
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Nov 30, 2000
Inventor
Mituru Takahashi
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.