Granted Patent
Utility
US 5,315,209 · App. 08/042,908
Color cathode ray tube with selective light absorption film
Inventor:
Yasuo Iwasaki
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Mar 5, 1993
Inventor
Yasuo Iwasaki
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.