Granted Patent
Utility
US 5,712,936 · App. 08/762,035
Hybrid bi-directional three color wave division multiplexer and method using same
Inventors:
Mark Joseph Hoag, II, David Keiser
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Dec 9, 1996
Inventors
Mark Joseph Hoag, II
David Keiser
Assignee (at issue)
MCI Communications Corporation
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.