Granted Patent
Utility
US 6,581,176 · App. 09/223,755
Method for transmitting control frames and user data frames in mobile radio communication system
Inventor:
Chang Keun Seo
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Dec 31, 1998
Inventor
Chang Keun Seo
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.