Granted Patent
Utility
US 6,404,999 · App. 09/685,879
Image formation apparatus with determination of state of transfer device
Inventors:
Junichi Shoji, Satoshi Narita, Tetsunori Kaneko
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Oct 11, 2000
Inventors
Junichi Shoji
Satoshi Narita
Tetsunori Kaneko
Assignee (at issue)
HITACHI, 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.