Granted Patent
Utility
US 6,223,242 · App. 09/161,923
Linearly expandable self-routing crossbar switch
Inventors:
Stephen James Sheafor, Christopher Koerner, Bradford C. Lincoln, Robert Sugar, Jonathan Lockwood Huie
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Sep 28, 1998
Inventors
Stephen James Sheafor
Christopher Koerner
Bradford C. Lincoln
Robert Sugar
Jonathan Lockwood Huie
Assignee (at issue)
Sifera, 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.