Granted Patent
Utility
US 4,824,201 · App. 07/072,715
Simultaneous transmission of LED and laser signals over single mode fiber
Inventor:
Leonid G. Kazovsky
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Jul 13, 1987
Inventor
Leonid G. Kazovsky
Assignee (at issue)
Bell Communications Research, 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.