Granted Patent
Utility
US 6,683,634 · App. 10/014,578
Image forming apparatus of a 4-series drum configuration
Inventor:
Naoya Murakami
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Dec 14, 2001
Inventor
Naoya Murakami
Assignees (at issue)
Kabushiki Kaisha Toshiba
TOSHIBA TEC KABUSHIKI KAISHA
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.