Granted Patent
Utility
US 6,587,666 · App. 09/950,135
Process unit with cleaner and image forming apparatus comprising the same
Inventors:
Tomoyuki Kato, Satoshi Itaya
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Sep 10, 2001
Inventors
Tomoyuki Kato
Satoshi Itaya
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.