Granted Patent
Utility
US 4,772,086 · App. 06/934,440
Optical fiber integrated optical device coupler
Inventors:
Richard Bellerby, Michael Grant
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Nov 24, 1986
Inventors
Richard Bellerby
Michael Grant
Assignee (at issue)
STC PLC
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.