Granted Patent
Utility
US 4,480,184 · App. 06/358,826
Molded optical waveguide switching apparatus
Inventor:
Richard I. Ely
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Mar 16, 1982
Inventor
Richard I. Ely
Assignee (at issue)
Burroughs, 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.