Granted Patent
Utility
US 4,352,208 · App. 06/256,760
Automatic IF selectivity for radio receiver system
Inventor:
Daniel R. Schroeder
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Apr 23, 1981
Inventor
Daniel R. Schroeder
Assignee (at issue)
Motorola, Inc.
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.