Granted Patent
Utility
US 6,167,170 · App. 09/096,567
Optical switching device
Inventors:
Pierpaolo Boffi, Mario Martinelli, Davide Piccinin
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Jun 12, 1998
Inventors
Pierpaolo Boffi
Mario Martinelli
Davide Piccinin
Assignee (at issue)
Pirelli Cavi e Sistemi 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.