Granted Patent
Utility
US 4,930,877 · App. 07/263,468
Liquid crystal display
Inventors:
Mitsuru Kano, Kenji Miyagawa, Masahiko Yamaguchi, Eiji Imaizumi
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Oct 27, 1988
Inventors
Mitsuru Kano
Kenji Miyagawa
Masahiko Yamaguchi
Eiji Imaizumi
Assignee (at issue)
ALPS ELECTRIC 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.