Granted Patent
Utility
US 6,477,607 · App. 09/470,981
Duplexing structure of switching system processor and method thereof
Inventor:
Sang Ik Jeong
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Dec 23, 1999
Inventor
Sang Ik Jeong
Assignee (at issue)
LC Information & Communications, 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.