Granted Patent
Utility
US 4,387,954 · App. 06/225,893
Method for fabricating an optical waveguide evanescent wave coupler having an interleaved film
Inventor:
J. Donald Beasley
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Jan 19, 1981
Inventor
J. Donald Beasley
Assignee (at issue)
Gould 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.