Granted Patent
Utility
US 5,684,554 · App. 08/401,217
Liquid crystal display
Inventors:
Reinhard Sperger, Ernst Luger
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Mar 9, 1995
Inventors
Reinhard Sperger
Ernst Luger
Assignee (at issue)
Balzers Aktiengesellschaft
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.