Granted Patent
Utility
US 4,950,045 · App. 07/377,468
Single mode couplers
Inventors:
Terry Bricheno, Alan Fielding, Stephen Day
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Jul 10, 1989
Inventors
Terry Bricheno
Alan Fielding
Stephen Day
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.