Granted Patent
Utility
US 5,753,045 · App. 08/499,989
Vacuum treatment system for homogeneous workpiece processing
Inventors:
Johann Karner, Mauro Pedrazzini, Erich Bergmann
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Jul 10, 1995
Inventors
Johann Karner
Mauro Pedrazzini
Erich Bergmann
Assignee (at issue)
Balzers Aktiengesellschaft
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.