Granted Patent
Utility
US 5,503,902 · App. 08/204,489
Light control material
Inventors:
Richard A. Steenblik, Mark J. Hurt
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Mar 2, 1994
Inventors
Richard A. Steenblik
Mark J. Hurt
Assignee (at issue)
Applied Physics Research, L.P.
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.