Granted Patent
Utility
US 5,757,910 · App. 08/661,661
Apparatus for preventing illegal copying of a digital broadcasting signal
Inventor:
Chai Yeol Rim
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Jun 11, 1996
Inventor
Chai Yeol Rim
Assignee (at issue)
Goldstar 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.