Granted Patent
Utility
US 4,355,422 · App. 06/240,631
Tunable radio receiver with detuning prevention due to power supply variations
Inventor:
Hans-Joachim Paschen
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Mar 4, 1981
Inventor
Hans-Joachim Paschen
Assignee (at issue)
International Standard Electric Corporation
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.