Granted Patent
Utility
US 4,229,621 · App. 05/885,945
Transmitting means for use in a high speed, low noise digital data communication system
Inventor:
Floyd W. Looschen
Patented Case
View Patent ↗
Granted: Oct 21, 1980
Filed: Mar 13, 1978
Inventor
Floyd W. Looschen
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.