Granted Patent
Utility
US 6,073,023 · App. 09/004,106
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: Jun 6, 2000
Filed: Jan 7, 1998
Inventors
Karen Tirabassi
Andrew Goldberg
Greg Butz
Patrick J. MeLampy
Mary Stanhope
Andrew Coppola
Assignee (at issue)
Comcast Cellular Communications, 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.