Granted Patent
Utility
US 5,665,270 · App. 08/142,292
Optically active trifluorolactic acid derivative and liquid crystal composition
Inventors:
Masatoshi Fukushima, Shinichi Saito
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: May 4, 1994
Inventors
Masatoshi Fukushima
Shinichi Saito
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.