Granted Patent
Utility
US 6,493,159 · App. 08/756,140
Optical element and its manufacturing process
Inventor:
Johannes Edlinger
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Nov 26, 1996
Inventor
Johannes Edlinger
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.