Granted Patent
Utility
US 4,297,595 · App. 06/049,136
Signal regenerating circuit with improved input-output isolation
Inventor:
Josef Huellwegen
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Jun 18, 1979
Inventor
Josef Huellwegen
Assignee (at issue)
Nixdorf Computer AG
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.