Granted Patent
Utility
US 6,259,883 · App. 09/549,591
Imaging forming apparatus having a toner exhausting device
Inventors:
Hiroshi Tsunoda, Yuichiro Suzuki, Yoshitaka Fujinuma, Masayuki Ainoya
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Apr 14, 2000
Inventors
Hiroshi Tsunoda
Yuichiro Suzuki
Yoshitaka Fujinuma
Masayuki Ainoya
Assignee (at issue)
Hitachi Koki 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.