Granted Patent
Utility
US 6,765,967 · App. 10/365,829
PCM codec and modem for 56k bi-directional transmission
Inventor:
Eric Morgan Dowling
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Feb 14, 2003
Inventor
Eric Morgan Dowling
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.