Granted Patent
Utility
US 4,434,072 · App. 06/340,547
Liquid crystal composition
Inventors:
Seiichi Imahori, Masaharu Kaneko, Tetsuo Ozawa, Shuji Imazeki, Akio Mukoh, Mikio Sato
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Jan 18, 1982
Inventors
Seiichi Imahori
Masaharu Kaneko
Tetsuo Ozawa
Shuji Imazeki
Akio Mukoh
Mikio Sato
Assignees (at issue)
Mitsubishi Chemical Industries, Ltd.
HITACHI, 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.