Granted Patent
Utility
US 6,014,481 · App. 08/986,707
Device for coupling and decoupling optical signals of two transmission channels
Inventor:
Ernst Kremers
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Dec 8, 1997
Inventor
Ernst Kremers
Assignee (at issue)
Robert Bosch GmbH
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.