Granted Patent
Utility
US 6,685,995 · App. 09/582,920
Ester compounds, liquid crystal compositions and liquid crystal display devices
Inventors:
Yasuhiro Haseba, Shuichi Matsui, Hiroyuki Takeuchi, Yoshitaka Yagi, Fusayuki Takeshita, Etsuo Nakagawa
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Jul 7, 2000
Inventors
Yasuhiro Haseba
Shuichi Matsui
Hiroyuki Takeuchi
Yoshitaka Yagi
Fusayuki Takeshita
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.