Granted Patent
Utility
US 6,173,399 · App. 08/874,091
Apparatus for implementing virtual private networks
Inventor:
Sidney A. Gilbrech
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Jun 12, 1997
Inventor
Sidney A. Gilbrech
Assignee (at issue)
VPNET Technologies, 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.