Granted Patent
Utility
US 6,259,552 · App. 09/564,500
Optical wavelength converter
Inventors:
Pierpaolo Boffi, Lucia Marazzi, Mario Martinelli
Patented Case
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Granted: Jul 10, 2001
Filed: May 4, 2000
Inventors
Pierpaolo Boffi
Lucia Marazzi
Mario Martinelli
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.