Granted Patent
Utility
US 5,113,458 · App. 07/674,909
Optical multiplexing
Inventor:
Robert M. Taylor
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Apr 11, 1991
Inventor
Robert M. Taylor
Assignee (at issue)
Smiths Industries Public Limited Company
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.