Granted Patent
Utility
US 4,429,947 · App. 06/253,671
Reflection mount for transmission holograms
Inventor:
Stephen A. Benton
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Apr 13, 1981
Inventor
Stephen A. Benton
Assignee (at issue)
Polaroid Corporation
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.