Granted Patent
Utility
US 6,154,641 · App. 09/179,572
Wideband multiple channel frequency converter
Inventor:
Zexiang Zhang
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Oct 27, 1998
Inventor
Zexiang Zhang
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.