Granted Patent
Utility
US 4,297,528 · App. 06/073,781
Training circuit for audio signal recognition computer
Inventor:
Richard D. Beno
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Sep 10, 1979
Inventor
Richard D. Beno
Assignee (at issue)
Interstate Electronics 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.