Granted Patent
Utility
US 5,581,556 · App. 08/226,695
Local area network system
Inventor:
Mitsuya Ohie
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Apr 12, 1994
Inventor
Mitsuya Ohie
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.