Granted Patent
Utility
US 5,427,905 · App. 08/274,650
Thermally processable image-recording material including reductone developing agent
Inventors:
James R. Freedman, Kent M. Young
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Jul 13, 1994
Inventors
James R. Freedman
Kent M. Young
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.