Granted Patent
Utility
US 6,583,284 · App. 10/300,422
Anisotropic films based on sulfoderivatives of phenanthro-9′, 10′:2,3-quinoxaline and lyotropic liquid crystal systems and method for making
Inventors:
Elena N. Sidorenko, Tatiana Ya. Dutova
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Nov 19, 2002
Inventors
Elena N. Sidorenko
Tatiana Ya. Dutova
Assignee (at issue)
Optiva, Inc.
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.