Granted Patent
Utility
US 5,416,624 · App. 08/229,586
Bidirectional optical transmission and reception arrangement
Inventor:
Holger Karstensen
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Apr 19, 1994
Inventor
Holger Karstensen
Assignee (at issue)
Siemens 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.