Granted Patent
Utility
US 5,790,945 · App. 08/781,563
Resonator for coupling intermediate frequency signals from a radio frequency mixer
Inventor:
Bruce A. Erickson
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Jan 9, 1997
Inventor
Bruce A. Erickson
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.