Granted Patent
Utility
US 5,883,992 · App. 08/737,540
Method for making optical waveguide couplers with low wavelength sensitivity and couplers thereby produced
Inventor:
Francois Gonthier
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Nov 14, 1996
Inventor
Francois Gonthier
Assignee (at issue)
Framatome Connectors Canada 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.