Granted Patent
Utility
US 5,374,819 · App. 08/124,761
Optical head having a beam cutting mirror with a total absorption surface
Inventors:
Young Woong Kim, Chul-woo Lee
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Sep 22, 1993
Inventors
Young Woong Kim
Chul-woo Lee
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.