Granted Patent
Utility
US 4,678,939 · App. 06/765,735
Output circuit for signal transmission systems
Inventor:
Hans-Bodo Laue
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Aug 14, 1985
Inventor
Hans-Bodo Laue
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.