Granted Patent
Utility
US 5,164,940 · App. 07/708,769
Modular communication system with allocatable bandwidth
Inventor:
Thomas A. Gray
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: May 31, 1991
Inventor
Thomas A. Gray
Assignee (at issue)
Mitel Corporation
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.