Granted Patent
Utility
US 4,581,769 · App. 06/575,422
Radar warning receiver
Inventors:
Richard L. Grimsley, Michael D. Valentine
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Jan 31, 1984
Inventors
Richard L. Grimsley
Michael D. Valentine
Assignee (at issue)
Cincinnati Microwave, 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.