Granted Patent
Utility
US 4,448,511 · App. 06/328,748
Electrophotographic recording apparatus with corona-discharge device having cover means between end of discharge wire and electrophotosensitive surface
Inventor:
Keiji Masuda
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Dec 8, 1981
Inventor
Keiji Masuda
Assignee (at issue)
Konishiroku Photo Industry 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.