Granted Patent
Utility
US 4,939,521 · App. 07/242,536
Dual horn, multi-band radar detector
Inventor:
Marian Mark Burin
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: Sep 12, 1988
Inventor
Marian Mark Burin
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.