Granted Patent
Utility
US 4,886,331 · App. 07/169,316
Thermo-optically induced waveguide
Inventor:
Lauren M. Peterson
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Mar 17, 1988
Inventor
Lauren M. Peterson
Assignee (at issue)
Environmental Research Institute
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.