Granted Patent
Utility
US 5,016,950 · App. 07/215,474
Full-color zero-order suppressed diffraction optics diffusing screen/louver filter laminate
Inventor:
Ronald T. Smith
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Jul 5, 1988
Inventor
Ronald T. Smith
Assignee (at issue)
Hughes Aircraft Company
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.