Granted Patent
Utility
US 4,569,738 · App. 06/606,920
Method of producing amorphous carbon coatings on substrates by plasma deposition
Inventors:
Jorg Kieser, Michael Neusch
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: May 4, 1984
Inventors
Jorg Kieser
Michael Neusch
Assignee (at issue)
Leybold-Heraeus GmbH
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.