Granted Patent
Utility
US 6,544,102 · App. 09/792,563
Device for centering clamping of workpieces, in particular optical lenses, for edge machining thereof
Inventors:
Erhard Schafer, Holger Schäfer
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Feb 23, 2001
Inventors
Erhard Schafer
Holger Schäfer
Assignee (at issue)
Loh Optikmaschinen AG
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.