Granted Patent
Utility
US 5,059,921 · App. 07/558,927
Amplifier having two operating modes
Inventors:
Robert L. Vyne, Thomas D. Petty
Patented Case
View Patent ↗
Granted: Oct 22, 1991
Filed: Jul 27, 1990
Inventors
Robert L. Vyne
Thomas D. Petty
Assignee (at issue)
Motorola, 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.