Granted Patent
Utility
US 6,157,629 · App. 09/034,822
CDMA mobile communication system of automatically changing frequency and method thereof
Inventors:
Han Koo Jeon, Seung-Hyon Min, Weon-Moo Kim
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Mar 4, 1998
Inventors
Han Koo Jeon
Seung-Hyon Min
Weon-Moo Kim
Assignee (at issue)
Hyundai Electronics Ind. Co., 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.