Granted Patent
Utility
US 5,422,039 · App. 08/217,564
Liquid crystal material, liquid crystal composition and liquid crystal element
Inventors:
Junichi Kawabata, Shinichi Nishiyama
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Mar 25, 1994
Inventors
Junichi Kawabata
Shinichi Nishiyama
Assignee (at issue)
Mitsui Petrochemical Industries, 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.