Granted Patent
Utility
US 4,887,311 · App. 07/039,331
Radio with options board
Inventors:
Terry N. Garner, Robert P. Dixon
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Apr 17, 1987
Inventors
Terry N. Garner
Robert P. Dixon
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.