Granted Patent
Utility
US 5,708,701 · App. 08/503,190
Power line telephone communications system having on hook digital voiceband messaging
Inventors:
Felix J. Houvig, Chandrakant B. Patel
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Jul 17, 1995
Inventors
Felix J. Houvig
Chandrakant B. Patel
Assignee (at issue)
Elcom Technologies Corporation
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.