Granted Patent
Utility
US 4,500,991 · App. 06/384,275
Circuit arrangement for the control of the transmission of digital signals, particularly PCM-signals, between stations of a time division multiplex telecommunication network particularly PCM-time division multiplex telecommunication network
Inventors:
Hartmut Lubcke, Martin Backhaus
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: Jun 2, 1982
Inventors
Hartmut Lubcke
Martin Backhaus
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.