Granted Patent
Utility
US 6,570,871 · App. 08/727,730
Internet telephone service using cellular digital vocoder
Inventor:
Allan Schneider
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Oct 8, 1996
Inventor
Allan Schneider
Assignee (at issue)
Verizon Services Corp.
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.