Granted Patent
Utility
US 4,533,208 · App. 06/477,178
Evanescent-wave star coupler on a substrate
Inventor:
David W. Stowe
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Mar 21, 1983
Inventor
David W. Stowe
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.