Granted Patent
Utility
US 5,091,244 · App. 07/566,052
Electrically-conductive, light-attenuating antireflection coating
Inventor:
Erik J. Biornard
Patented Case
View Patent ↗
Granted: Feb 25, 1992
Filed: Aug 10, 1990
Inventor
Erik J. Biornard
Assignee (at issue)
Viratec Thin Films, 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.