Granted Patent
Utility
US 4,985,703 · App. 07/305,538
Analog multiplexer
Inventor:
Hideyo Kaneyama
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Feb 2, 1989
Inventor
Hideyo Kaneyama
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.