Granted Patent
Utility
US 6,507,548 · App. 09/592,433
Optical pickup device
Inventors:
Jong-ryull Kim, Kun-soo Kim, Myong-soo Choi, Hyung-taek Oh, Jong-hwa Yu
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Jun 12, 2000
Inventors
Jong-ryull Kim
Kun-soo Kim
Myong-soo Choi
Hyung-taek Oh
Jong-hwa Yu
Assignee (at issue)
SAMSUNG DISPLAY 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.