Granted Patent
Utility
US 4,578,820 · App. 06/586,546
Received signal strength indicator
Inventor:
Frederick J. Highton
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Mar 5, 1984
Inventor
Frederick J. Highton
Assignee (at issue)
General Electric Company
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.