Granted Patent
Utility
US 6,567,381 · App. 09/468,094
Method and apparatus for automatic call test in a CDMA system
Inventors:
Young-Ki Jeon, Young Kon Kim, Dae Gun Choi, Jae Won Chang, Woon Hee Nah
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Dec 21, 1999
Inventors
Young-Ki Jeon
Young Kon Kim
Dae Gun Choi
Jae Won Chang
Woon Hee Nah
Assignees (at issue)
Willtech Incorporation
KTFreetel 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.