Granted Patent
Utility
US 5,157,345 · App. 07/689,346
Apparatus and method for reducing distortion in amplification
Inventors:
Peter Kenington, Mark A. Beach, Andrew Bateman, Joseph P. McGeehan
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Apr 24, 1991
Inventors
Peter Kenington
Mark A. Beach
Andrew Bateman
Joseph P. McGeehan
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.