Granted Patent
Utility
US 6,620,254 · App. 09/879,527
Planetary system workpiece support and method for surface treatment of workpieces
Inventors:
Martin Zaech, Anton Kunz
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Jun 12, 2001
Inventors
Martin Zaech
Anton Kunz
Assignee (at issue)
Unaxis 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.