Granted Patent
Utility
US 5,154,943 · App. 07/670,420
Plasma CVD process for coating a dome-shaped substrate
Inventors:
Heinz-Werner Etzkorn, Harald Krummel, Volker Paquet, Günter Weidmann
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Mar 18, 1991
Inventors
Heinz-Werner Etzkorn
Harald Krummel
Volker Paquet
Günter Weidmann
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.