Granted Patent
Utility
US 4,921,239 · App. 07/266,342
Document feeding apparatus
Inventors:
Susumu Okui, Tsugio Hirabayashi, Izumi Hamanaka
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Nov 1, 1988
Inventors
Susumu Okui
Tsugio Hirabayashi
Izumi Hamanaka
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.