Granted Patent
Utility
US 4,975,103 · App. 07/403,967
Process for producing a planar glass substrate coated with a dielectric layer system
Inventors:
Ulrich Ackermann, Heinz-Werner Etzkorn, Ralf Kersten, Volker Paquet, Uwe Ruetze
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Sep 7, 1989
Inventors
Ulrich Ackermann
Heinz-Werner Etzkorn
Ralf Kersten
Volker Paquet
Uwe Ruetze
Assignee (at issue)
Schott Glaswerke
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.