Granted Patent
Utility
US 4,952,936 · App. 07/242,533
Multibrand radar detector having plural local oscillators
Inventor:
Glen D. Martinson
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Sep 12, 1988
Inventor
Glen D. Martinson
Assignee (at issue)
Beltronics 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.