Granted Patent
Utility
US 5,840,208 · App. 08/812,956
Liquid crystal composition and liquid crystal display element
Inventors:
Takashi Yamaguchi, Katsuyuki Murashiro, Fusayuki Takeshita, Tetsuya Matsushita, Etsuo Nakagawa
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Mar 5, 1997
Inventors
Takashi Yamaguchi
Katsuyuki Murashiro
Fusayuki Takeshita
Tetsuya Matsushita
Etsuo Nakagawa
Assignee (at issue)
Chisso 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.