Granted Patent
Utility
US 6,163,350 · App. 09/378,920
Filter device and backlight device, each filter sheet having only one holding portion which is bonded to a frame member
Inventor:
Masahiro Ihara
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Aug 23, 1999
Inventor
Masahiro Ihara
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.