Granted Patent
Utility
US 4,838,634 · App. 06/141,665
Organic optical waveguides and method of fabricating waveguide structures
Inventors:
Ian Bennion, Clive Trundle, Jack Brettle, Martin J. Goodwin, Robert Glenn
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Dec 28, 1987
Inventors
Ian Bennion
Clive Trundle
Jack Brettle
Martin J. Goodwin
Robert Glenn
Assignee (at issue)
The Plessey Company 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.