Granted Patent
Utility
US 4,231,562 · App. 05/884,999
Recirculating document feeder
Inventor:
Tatsu Hori
Patented Case
View Patent ↗
Granted: Nov 4, 1980
Filed: Mar 9, 1978
Inventor
Tatsu Hori
Assignee (at issue)
Savin Corporation
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.