Granted Patent
Utility
US 5,619,355 · App. 08/131,725
Liquid crystal handedness switch and color filter
Inventors:
Gary D. Sharp, Kristina M. Johnson
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Oct 5, 1993
Inventors
Gary D. Sharp
Kristina M. Johnson
Assignee (at issue)
The Regents of the University of Colorado
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.