Granted Patent
Utility
US 6,577,730 · App. 09/456,209
Modular digital telephone system and method including an universal telephony shelf
Inventors:
Stephen Weir, Leonid Shvarzberg, Stephen Bellato, Terry Svetz, David Hochman, Hermon Vis, John Henel, Shad Muegge
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Dec 7, 1999
Inventors
Stephen Weir
Leonid Shvarzberg
Stephen Bellato
Terry Svetz
David Hochman
Hermon Vis
John Henel
Shad Muegge
Assignee (at issue)
Teltronics, 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.