Granted Patent
Utility
US 5,301,187 · App. 08/066,973
System for implementing broadband audio program telephony circuits using 2B1Q technology
Inventor:
Peter M. Reum
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: May 25, 1993
Inventor
Peter M. Reum
Assignee (at issue)
XEL Communications, Inc.
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.