Granted Patent
Utility
US 5,574,749 · App. 08/284,023
Line interface apparatus and method for isolating data terminal equipment from the line
Inventors:
David Nelson, David H. Nabors
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Aug 1, 1994
Inventors
David Nelson
David H. Nabors
Assignee (at issue)
Motorola, 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.