Granted Patent
Utility
US 5,352,379 · App. 07/894,659
Liquid crystal composition, liquid crystal element and process for the preparation of liquid crystal element
Inventors:
Shinichi Nishiyama, Hideo Hama, Tooru Yamanaka, Yukio Miyachi
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Jun 5, 1992
Inventors
Shinichi Nishiyama
Hideo Hama
Tooru Yamanaka
Yukio Miyachi
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.