Granted Patent
Utility
US 6,327,447 · App. 09/665,321
Electrophotographic apparatus having heat exhaustion device
Inventors:
Masaru Nakano, Kenji Mori, Katsumasa Mikami, Kazuhiro Wakamatsu
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Sep 19, 2000
Inventors
Masaru Nakano
Kenji Mori
Katsumasa Mikami
Kazuhiro Wakamatsu
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.