Granted Patent
Utility
US 6,168,839 · App. 09/331,428
Cyclohexane derivatives, liquid-crystal composition, and liquid-crystal display element
Inventors:
Atsuko Fujita, Shuichi Matsui, Kazutoshi Miyazawa, Hiroyuki Takeuchi, Fusayuki Takeshita, Etsuo Nakagawa
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Jun 21, 1999
Inventors
Atsuko Fujita
Shuichi Matsui
Kazutoshi Miyazawa
Hiroyuki Takeuchi
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.