Granted Patent
Utility
US 5,759,721 · App. 08/743,419
Holographic medium and process for use thereof
Inventors:
Pradeep K. Dhal, Michael Horner, Richard T. Ingwall, Eric S. Kolb, Parag G. Mehta, Richard A. Minns, Howard G. Schild, David A. Waldman
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Nov 1, 1996
Inventors
Pradeep K. Dhal
Michael Horner
Richard T. Ingwall
Eric S. Kolb
Parag G. Mehta
Richard A. Minns
Howard G. Schild
David A. Waldman
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.