Granted Patent
Utility
US 4,580,890 · App. 06/500,617
Paper feeding system in a copying apparatus
Inventors:
Tsugio Sugizaki, Tadashi Abe
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Jun 3, 1983
Inventors
Tsugio Sugizaki
Tadashi Abe
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.