Granted Patent
Utility
US 6,822,935 · App. 09/662,881
Track discriminating apparatus and method for optical recording medium
Inventors:
Sang On Park, You Jae Park, Kyung Soo Kim
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Sep 15, 2000
Inventors
Sang On Park
You Jae Park
Kyung Soo Kim
Assignee (at issue)
LG ELECTRONICS INC.
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.