Granted Patent
Utility
US 5,874,022 · App. 08/927,808
Liquid crystal composition and liquid crystal display device
Inventors:
Yasuhiro Kubo, Fusayuki Takeshita, Tetsuya Matsushita, Etsuo Nakagawa, Tomoyuki Kondo
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Sep 12, 1997
Inventors
Yasuhiro Kubo
Fusayuki Takeshita
Tetsuya Matsushita
Etsuo Nakagawa
Tomoyuki Kondo
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.