Granted Patent
Utility
US 5,617,421 · App. 08/261,393
Extended domain computer network using standard links
Inventors:
Hon Wah Chin, Frederick Scott
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Jun 17, 1994
Inventors
Hon Wah Chin
Frederick Scott
Assignee (at issue)
Cisco Systems 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.