Granted Patent
Utility
US 5,327,463 · App. 07/675,533
Integrated circuit device for RS-232C line receiver
Inventor:
Yoichi Matsumoto
Patented Case
View Patent ↗
Granted: Jul 5, 1994
Filed: Mar 25, 1991
Inventor
Yoichi Matsumoto
Assignee (at issue)
NEC 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.