Granted Patent
Utility
US 5,559,623 · App. 08/242,850
Method and arrangement for arranging an interception-proof optical link
Inventor:
G oran Einarsson
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: May 16, 1994
Inventor
G oran Einarsson
Assignee (at issue)
Telia Company AB
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.