Granted Patent
Utility
US 5,917,801 · App. 09/030,214
Optical pickup device
Inventor:
Man Hyung Lee
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: Feb 25, 1998
Inventor
Man Hyung Lee
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.