Granted Patent
Utility
US 6,205,325 · App. 09/223,906
Active radio frequency mixer circuit with feedback
Inventor:
John B. Groe
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Dec 31, 1998
Inventor
John B. Groe
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.