Granted Patent
Utility
US 5,589,965 · App. 08/264,300
Wide viewing-angle dye-doped TN LCD with retardation films
Inventors:
Birendra Bahadur, Kam Hung Wan
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Jun 23, 1994
Inventors
Birendra Bahadur
Kam Hung Wan
Assignee (at issue)
Litton Systems Canada Limited
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.