Granted Patent
Utility
US 5,138,280 · App. 07/802,590
Multichannel amplifier with gain matching
Inventors:
Randal R. Gingrich, Nicholas Lawrence Difiore
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Dec 5, 1991
Inventors
Randal R. Gingrich
Nicholas Lawrence Difiore
Assignee (at issue)
Ford Motor 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.