Granted Patent
Utility
US 5,650,833 · App. 08/625,843
Liquid crystal display device having birefringent films with n.sub.x >n.sub. >n.sub.y
Inventors:
Minoru Akatsuka, Yuji Sohda, Kazutoshi Sawada
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Apr 1, 1996
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.