Granted Patent
Utility
US 6,429,974 · App. 09/854,100
Add-drop multiplexer
Inventors:
Mark A. Thomas, Michael R. Munroe
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: May 11, 2001
Inventors
Mark A. Thomas
Michael R. Munroe
Assignee (at issue)
Mahi Networks, 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.