Granted Patent
Utility
US 4,728,178 · App. 06/832,276
Faceted magneto-optical garnet layer and light modulator using the same
Inventors:
Devlin M. Gualtieri, Paul F. Tumelty
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Feb 20, 1986
Inventors
Devlin M. Gualtieri
Paul F. Tumelty
Assignee (at issue)
ALLIED CONSULTING, 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.