Granted Patent
Utility
US 6,819,933 · App. 09/500,606
Communications system having pre-defined calling group
Inventors:
Karen Tirabassi, Andrew Goldberg, Greg Butz, Patrick J. MeLampy, Mary Stanhope, Andrew Coppola
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Feb 7, 2000
Inventors
Karen Tirabassi
Andrew Goldberg
Greg Butz
Patrick J. MeLampy
Mary Stanhope
Andrew Coppola
Assignee (at issue)
SBC Technology Resources 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.