Granted Patent
Utility
US 6,775,556 · App. 09/576,998
Device and method for processing call between private exchange network and mobile communication network
Inventors:
Gi Moo Ghoi, Hwan-Jong Kang, Pill O Hong
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: May 24, 2000
Inventors
Gi Moo Ghoi
Hwan-Jong Kang
Pill O Hong
Assignee (at issue)
LG 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.