Granted Patent
Utility
US 5,748,810 · App. 08/722,419
Acousto-optical tunable waveguide switch having balanced optical paths
Inventor:
Steffen Schmid
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Oct 1, 1996
Inventor
Steffen Schmid
Assignee (at issue)
Pirelli Cavi S.p.A.
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.