Granted Patent
Utility
US 4,838,658 · App. 07/108,049
Liquid crystal alignment layer with sidechains controlling tilt angle
Inventor:
Rolf Zondler
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Oct 13, 1987
Inventor
Rolf Zondler
Assignee (at issue)
Nokia Graetz
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.