Granted Patent
Utility
US 5,790,885 · App. 08/411,808
Method for controlling IC card reader/writer to transmit same character frame upon receiving echo back character indicating an error exists in received character frame
Inventor:
Yoshihiro Shona
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Apr 10, 1995
Inventor
Yoshihiro Shona
Assignee (at issue)
OKI ELECTRIC 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.