Granted Patent
Utility
US 6,173,092 · App. 09/287,155
Optical mirror switch utilizing walk-off devices
Inventor:
Ernest Eisenhardt Bergmann
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Apr 6, 1999
Inventor
Ernest Eisenhardt Bergmann
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.