Granted Patent
Utility
US 5,214,671 · App. 07/808,606
Adaptive equalizer
Inventor:
Toshihisa Nakai
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Dec 17, 1991
Inventor
Toshihisa Nakai
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.