Granted Patent
Utility
US 6,389,274 · App. 09/202,421
Subharmonic frequency converter for applications to millimetric radio waves
Inventors:
Marco Piloni, Fulvio Cattaneo
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: May 21, 1999
Inventors
Marco Piloni
Fulvio Cattaneo
Assignee (at issue)
Italtel 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.