Granted Patent
Utility
US 6,321,069 · App. 09/202,809
Arrangement for reducing intermodulation distortion of radio frequency signals
Inventor:
Risto Piirainen
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Dec 22, 1998
Inventor
Risto Piirainen
Assignee (at issue)
Nokia Telecommunications Oy
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.