Granted Patent
Utility
US 6,785,272 · App. 09/339,729
Intelligent stacked switching system
Inventor:
Tomoyuki Sugihara
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jun 24, 1999
Inventor
Tomoyuki Sugihara
Assignee (at issue)
Allied Telesyn 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.