Granted Patent
Utility
US 5,970,139 · App. 08/781,270
T1 channel bank control process and apparatus
Inventors:
Roger L. Koenig, Thomas Bullington, Phillip Clark
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Jan 10, 1997
Inventors
Roger L. Koenig
Thomas Bullington
Phillip Clark
Assignee (at issue)
Carrier Access 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.