Granted Patent
Utility
US 6,570,981 · App. 09/455,802
Device and method for expanding legacy switches
Inventors:
Stephen Weir, Leonid Shvarzberg, Stephen Bellato, David Hochman, Terry Svetz, Herman Vis, John Henel, Shad Muegge
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Dec 7, 1999
Inventors
Stephen Weir
Leonid Shvarzberg
Stephen Bellato
David Hochman
Terry Svetz
Herman 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.