Granted Patent
Utility
US 6,712,671 · App. 10/103,150
Device for edge-machining of optical lenses
Inventors:
Steffen Wallendorf, Holger Schäfer
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Mar 21, 2002
Inventors
Steffen Wallendorf
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.