Granted Patent
Utility
US 6,653,909 · App. 10/014,402
Digital signals, radio transmitter circuits and method
Inventor:
Per Asbeck Nielsen
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Dec 14, 2001
Inventor
Per Asbeck Nielsen
Assignee (at issue)
Nokia
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.