Granted Patent
Utility
US 5,675,747 · App. 08/699,691
Data transmission system with erroneous connection indicator
Inventor:
Keiji Sawanobori
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Aug 15, 1996
Inventor
Keiji Sawanobori
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.