Granted Patent
Utility
US 5,870,566 · App. 08/900,043
Port expansion network and method for lan hubs
Inventor:
Clarence Chulljoon Joh
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Jul 24, 1997
Inventor
Clarence Chulljoon Joh
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.