Granted Patent
Utility
US 6,248,260 · App. 09/355,285
Liquid-crystal compounds having fluorinated alkyl groups, liquid-crystal composition, and liquid-crystal display element
Inventors:
Yasuhiro Haseba, Kazutoshi Miyazawa, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Jul 28, 1999
Inventors
Yasuhiro Haseba
Kazutoshi Miyazawa
Shuichi Matsui
Hiroyuki Takeuchi
Yasuhiro Kubo
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.