Granted Patent
Utility
US 5,159,685 · App. 07/447,485
Expert system for communications network
Inventor:
Ching-Yi Kung
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Dec 6, 1989
Inventor
Ching-Yi Kung
Assignee (at issue)
Racal Data Communications, 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.