Granted Patent
Utility
US 5,900,957 · App. 08/808,310
Optical packet-switched transmission network
Inventor:
Johannes Jacobus Gerardus Maria Van Der Tol
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Feb 28, 1997
Inventor
Johannes Jacobus Gerardus Maria Van Der Tol
Assignee (at issue)
Koninklijke PTT Nederland N.V.
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.