Granted Patent
Utility
US 4,392,453 · App. 06/296,288
Molecular beam converters for vacuum coating systems
Inventor:
Paul Luscher
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: Aug 26, 1981
Inventor
Paul Luscher
Assignee (at issue)
Varian, 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.