Granted Patent
Utility
US 5,811,866 · App. 08/713,968
Active-matrix board having top and bottom light shielding films
Inventor:
Kazumi Hirata
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Sep 12, 1996
Inventor
Kazumi Hirata
Assignee (at issue)
NEC 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.