Granted Patent
Utility
US 4,314,740 · App. 06/147,641
Optical fiber beam splitter coupler
Inventor:
Gary W. Bickel
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: May 7, 1980
Inventor
Gary W. Bickel
Assignee (at issue)
International Telephone and Telegraph 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.