Granted Patent
Utility
US 4,808,946 · App. 06/945,650
Lightweight, high power audio amplifier and power supply
Inventors:
Robert W. Carver, M. Robert McKinley
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Dec 22, 1986
Inventors
Robert W. Carver
M. Robert McKinley
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.