Granted Patent
Utility
US 5,220,446 · App. 07/800,024
Liquid crystal display elements with spacers attached to insulation and orientation layers and method for manufacturing them
Inventor:
Bong Gyu Rho
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Nov 27, 1991
Inventor
Bong Gyu Rho
Assignee (at issue)
Goldstar Co., Ltd.
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.