Granted Patent
Utility
US 6,144,783 · App. 09/194,004
Optical multiplexter/demultiplexer
Inventors:
Richard E. Epworth, Terry Bricheno, George H. B. Thompson
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Nov 16, 1998
Inventors
Richard E. Epworth
Terry Bricheno
George H. B. Thompson
Assignee (at issue)
Nortel Networks Limited
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.