Granted Patent
Utility
US 5,369,513 · App. 07/987,455
Liquid crystal display device with biaxial birefringent plates and light shielding film
Inventors:
Minoru Akatsuka, Yuji Sohda, Kazutoshi Sawada
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Dec 7, 1992
Inventors
Minoru Akatsuka
Yuji Sohda
Kazutoshi Sawada
Assignee (at issue)
ASAHI GLASS 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.