Granted Patent
Utility
US 4,588,664 · App. 06/641,993
Photopolymerizable compositions used in holograms
Inventors:
Herbert L. Fielding, Richard T. Ingwall
Patented Case
View Patent ↗
Granted: May 13, 1986
Filed: Aug 20, 1984
Inventors
Herbert L. Fielding
Richard T. Ingwall
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.