Granted Patent
Utility
US 5,808,761 · App. 08/811,139
Path integrity proving in optical communications systems
Inventor:
William J. Stewart
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Mar 3, 1997
Inventor
William J. Stewart
Assignee (at issue)
GEC-Marconi Ltd.
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.